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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A328730 Dirichlet g.f.: Product_{k>=2} (1 - k^(-s))^k.

Original entry on oeis.org

1, -2, -3, -3, -5, 0, -7, 0, -6, 0, -11, 9, -13, 0, 0, 2, -17, 12, -19, 15, 0, 0, -23, 18, -15, 0, -1, 21, -29, 30, -31, 12, 0, 0, 0, 33, -37, 0, 0, 30, -41, 42, -43, 33, 30, 0, -47, 30, -28, 30, 0, 39, -53, 38, 0, 42, 0, 0, -59, 60, -61, 0, 42, 14, 0, 66, -67, 51, 0, 70
Offset: 1

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Author

Ilya Gutkovskiy, Oct 26 2019

Keywords

Comments

Dirichlet inverse of A050367.

Crossrefs

Cf. A050367, A114592, A161918 (positions of 0's), A328731.

Formula

a(1) = 1; a(n) = -Sum_{d|n, dA050367(n/d) * a(d).

A329365 Number of factorizations of n into factors (greater than 1) of n kinds.

Original entry on oeis.org

1, 2, 3, 14, 5, 42, 7, 192, 54, 110, 11, 1236, 13, 210, 240, 6460, 17, 3744, 19, 5020, 462, 506, 23, 85176, 350, 702, 4410, 12964, 29, 29730, 31, 604352, 1122, 1190, 1260, 542754, 37, 1482, 1560, 560840, 41, 79422, 43, 47476, 50670, 2162, 47, 15988848, 1274, 68800
Offset: 1

Views

Author

Ilya Gutkovskiy, Nov 12 2019

Keywords

Crossrefs

Cf. A001055, A050367, A301830.

Formula

a(p) = p, where p is prime.
Previous Showing 31-32 of 32 results.

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