A006532: Numbers whose sum of divisors is a square

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A006532.html
3D graph Gen, threejs animation https://decompwlj.com/3DgraphGen/A006532.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A006532.html

My data have not been verified but my work is highly reproducible.
- Downloads (csv, img, dump) https://decompwlj.com/
- Algorithms https://oeis.org/wiki/Decomposition_into_weight_*_level_%2B_jump#Algorithms

A006512: Greater of twin primes

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/Greater_twin_primes.html
3D graph Gen, threejs animation https://decompwlj.com/3DgraphGen/Greater_twin_primes.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/Greater_twin_primes.html

A006463: Convolve natural numbers with characteristic function of triangular numbers

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A006463.html
3D graph Gen, threejs animation https://decompwlj.com/3DgraphGen/A006463.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A006463.html

A006450: Prime-indexed primes: primes with prime subscripts

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A006450.html
3D graph Gen, threejs animation https://decompwlj.com/3DgraphGen/A006450.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A006450.html

A006446: Numbers k such that floor(sqrt(k)) divides k

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A006446.html
3D graph Gen, threejs animation https://decompwlj.com/3DgraphGen/A006446.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A006446.html

Decomposition into weight × level + jump of prime numbers in 3D, threejs - webGL (log(weight), log(level), log(jump))
https://decompwlj.com/3Dgraph/Prime_numbers.html

A006378: Prime self (or Colombian) numbers: primes not expressible as the sum of an integer and its digit sum

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/Prime_self_numbers.html
3D graph Gen, threejs animation https://decompwlj.com/3DgraphGen/Prime_self_numbers.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/Prime_self_numbers.html

In a riveting collection of eye-wateringly #thrilling #blog #posts, a valiant attempt is made to translate the mystical language of #LLMs into the even more mystical language of #math . Alas, this captivating #odyssey is simply a #numbers #game for those who enjoy reading their calendars more than content.
https://www.gilesthomas.com/2025/09/maths-for-llms #Translation #HackerNews #ngated

A006364: Numbers k with an even number of 1's in binary, ignoring last bit.

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A006364.html
3D graph Gen, threejs animation https://decompwlj.com/3DgraphGen/A006364.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A006364.html

A006314: Numbers k such that k^8 + 1 is prime

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A006314.html
3D graph Gen, threejs animation https://decompwlj.com/3DgraphGen/A006314.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A006314.html

A006093: a(n) = prime(n) - 1

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/Primes_minus_1.html
3D graph Gen, threejs animation https://decompwlj.com/3DgraphGen/Primes_minus_1.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/Primes_minus_1.html

My data have not been verified but my work is highly reproducible.
- Downloads (csv, img, dump) https://decompwlj.com/
- Algorithms https://oeis.org/wiki/Decomposition_into_weight_*_level_%2B_jump#Algorithms

A006073: Numbers k such that k, k+1 and k+2 all have the same number of distinct prime divisors

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A006073.html
3D graph Gen, threejs animation https://decompwlj.com/3DgraphGen/A006073.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A006073.html

Generation of four sequences decomposed into weight × level + jump (log(weight), log(level), log(jump)) - three.js animation:

1: The natural numbers (A000027) https://decompwlj.com/3DgraphGen/Natural_numbers.html

A006037: Weird numbers: abundant (A005101) but not pseudoperfect (A005835)

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/Weird_numbers.html
3D graph Gen, threejs animation https://decompwlj.com/3DgraphGen/Weird_numbers.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/Weird_numbers.html

A006036: Primitive pseudoperfect numbers

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/Primitive_pseudoperfect_numbers.html
3D graph Gen, threejs animation https://decompwlj.com/3DgraphGen/Primitive_pseudoperfect_numbers.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/Primitive_pseudoperfect_numbers.html

A005846: Primes of the form k^2 + k + 41

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A005846.html
3D graph Gen, threejs animation https://decompwlj.com/3DgraphGen/A005846.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A005846.html

Decomposition into weight × level + jump of prime numbers in 3D, threejs - webGL (log(weight), log(level), log(jump))
https://decompwlj.com/3Dgraph/Prime_numbers.html

A005843: The even numbers: a(n) = 2n

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/Even_numbers.html
3D graph Gen, threejs animation https://decompwlj.com/3DgraphGen/Even_numbers.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/Even_numbers.html