cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-3 of 3 results.

A378271 Number of partitions of 1 into {1/1^3, 1/2^3, 1/3^3, ..., 1/n^3}.

Original entry on oeis.org

1, 2, 3, 11, 12, 435, 436, 6748, 42360, 1252676, 1252677, 302302546, 302302547
Offset: 1

Views

Author

Ilya Gutkovskiy, Nov 21 2024

Keywords

Examples

			a(4) = 11 because we have 64 * (1/64) = 56 * (1/64) + 1/8 = 48 * (1/64) + 2 * (1/8) = 40 * (1/64) + 3 * (1/8) = 32 * (1/64) + 4 * (1/8) = 24 * (1/64) + 5 * (1/8) = 16 * (1/64) + 6 * (1/8) = 8 * (1/64) + 7 * (1/8) = 27 * (1/27) = 8 * (1/8) = 1.
		

Crossrefs

Formula

a(p) = a(p-1) + 1 for prime p. - Jinyuan Wang, Dec 11 2024

Extensions

a(9)-a(13) from Jinyuan Wang, Dec 11 2024

A379528 Number of compositions (ordered partitions) of 1 into {1/1^2, 1/2^2, 1/3^2, ..., 1/n^2}.

Original entry on oeis.org

1, 2, 3, 97, 98, 40917543, 40917544, 2901109178066823, 81221415992592163051371926, 373220766236315864054296758124337507430, 373220766236315864054296758124337507431
Offset: 1

Views

Author

Ilya Gutkovskiy, Dec 24 2024

Keywords

Crossrefs

Formula

a(p) = a(p-1) + 1 for p prime. - Chai Wah Wu, Dec 27 2024

Extensions

a(6)-a(11) from Alois P. Heinz, Dec 26 2024

A377284 Number of partitions of 1 into {1/1^n, 1/2^n, 1/3^n, ..., 1/n^n}.

Original entry on oeis.org

1, 2, 3, 19, 36, 522332, 6117036, 1183731130981
Offset: 1

Views

Author

Ilya Gutkovskiy, Dec 12 2024

Keywords

Examples

			a(3) = 3 because we have 27 * (1/27) = 8 * (1/8) = 1.
		

Crossrefs

Extensions

a(6)-a(8) from Jinyuan Wang, Dec 13 2024
Showing 1-3 of 3 results.