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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A339735 Dirichlet g.f.: Product_{k>=2} 1 / (1 + k^(-s))^9.

Original entry on oeis.org

1, -9, -9, 36, -9, 72, -9, -93, 36, 72, -9, -252, -9, 72, 72, 207, -9, -252, -9, -252, 72, 72, -9, 585, 36, 72, -93, -252, -9, -495, -9, -459, 72, 72, 72, 765, -9, 72, 72, 585, -9, -495, -9, -252, -252, 72, -9, -1278, 36, -252, 72, -252, -9, 585, 72, 585, 72, 72, -9, 1449
Offset: 1

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Author

Ilya Gutkovskiy, Dec 14 2020

Keywords

Crossrefs

Formula

a(1) = 1; a(n) = -Sum_{d|n, d < n} A339341(n/d) * a(d).
a(p^k) = A022604(k) for prime p.
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