One day, one decomposition
A276655: Numbers j such that Sum_{p|j} 0.p is an integer where p ranges over the prime divisors of j

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A276655.html
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2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A276655.html

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One day, one decomposition
A274357: Numbers n such that n and n+1 both have 8 divisors

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A274357.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/A274357.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A274357.html

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One day, one decomposition
A267892: Numbers with 9 odd divisors

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A267892.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/A267892.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A267892.html

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One day, one decomposition
A235034: Numbers whose prime divisors, when multiplied together without carry-bits (as encodings of GF(2)[X]-polynomials, with A048720), produce the original number; numbers for which A234741(n) = n

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A235034.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A235034.html

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One day, one decomposition
A230577: Positive integers that have exactly 6 odd divisors

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A230577.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A230577.html

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One day, one decomposition
A132999: Imperfect numbers: Not equal to sum of proper divisors

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/Imperfect_numbers.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/Imperfect_numbers.html

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One day, one decomposition
A123193: Numbers with number of divisors equal to a Fibonacci number

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A123193.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A123193.html

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One day, one decomposition
A122094: Prime divisors of Mersenne numbers. Primes p such that the multiplicative order of 2 modulo p is prime.

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A122094.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A122094.html

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One day, one decomposition
A113502: A number n is included if at least one of its divisors > 1 is a triangular number (i.e., is of the form m(m+1)/2, m >= 2)

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A113502.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A113502.html

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One day, one decomposition
A112886: Positive integers that have no triangular divisors > 1

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A112886.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A112886.html

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