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.

A306578 a(n) = n! * [x^n] A_n(x) with A_n(x) = exp(x*A_n(((x+1)^n-1)/n)) if n > 0 and A_0(x) = exp(x).

Original entry on oeis.org

1, 1, 3, 22, 329, 9216, 443227, 33690574, 3815631297, 615764308672, 136379590946891, 40153740607226214, 15306924742075555657, 7392759013812560317840, 4441824191762733091989051, 3268365147290283563408293846, 2905065653907985007147484366113
Offset: 0

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Author

Alois P. Heinz, Feb 24 2019

Keywords

Crossrefs

Main diagonal of A143632.

Formula

a(n) = A143632(n,n).