A306630 a(n) = [x^n] 1/(Sum_{k=0..n} (k!)^n * x^k).

1, -1, -3, -201, -328975, -24866803361, -139308071489312831, -82606210548424879390169217, -6984963414431972003347406551951687935, -109110687852301656115645192848607902864427297823233

Offset

0,3

Links

Seiichi Manyama, Table of n, a(n) for n = 0..30

Crossrefs

Main diagonal of A306629.

Sequence in context: A356178 A342578 A264674 * A140654 A229602 A080297

Adjacent sequences: A306627 A306628 A306629 * A306631 A306632 A306633

Keyword

sign

Author

Seiichi Manyama, Mar 02 2019

Status

approved