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.

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A379527 Number of compositions (ordered partitions) of 1 into {1/1, 1/3, 1/5, ..., 1/(2*n-1)}.

Original entry on oeis.org

1, 2, 3, 4, 22, 23, 24, 5115, 5116, 5117, 1689273, 1689274, 441985160, 191869129330, 191869129331, 191869129332
Offset: 1

Views

Author

Ilya Gutkovskiy, Dec 24 2024

Keywords

Links

Crossrefs

Cf. A005408, A020473, A038034, A378269.

Formula

If 2*n-1 is prime, then a(n) = a(n-1) + 1. - Chai Wah Wu, Dec 26 2024

Extensions

a(13)-a(16) from Chai Wah Wu, Dec 27 2024

A379562 Number of compositions (ordered partitions) of 1 into {1/1^3, 1/2^3, 1/3^3, ..., 1/n^3}.

Original entry on oeis.org

1, 2, 3, 272335, 272336
Offset: 1

Views

Author

Ilya Gutkovskiy, Dec 26 2024

Keywords

Links

Crossrefs

Cf. A000578, A020473, A038034, A378271, A379528.

Formula

a(p) = a(p-1) + 1 for p prime. - Chai Wah Wu, Jan 08 2025
Previous Showing 21-22 of 22 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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