A368561 a(n) = Sum_{k=0..n} k! * n^k.

1, 2, 11, 184, 6565, 390806, 34557919, 4237440628, 687219772553, 142347286888210, 36654963132246211, 11483715014356017104, 4300711472638444724653, 1897241450053063830832078, 973695564434830963964311655

Offset

0,2

Links

Table of n, a(n) for n=0..14.

Formula

a(n) ~ n! * n^n. - Vaclav Kotesovec, Jan 13 2024

Prog

(PARI) a(n) = sum(k=0, n, k!*n^k);

Crossrefs

Cf. A058006, A112368, A112370, A112541.

Sequence in context: A353930 A295246 A288564 * A295646 A124836 A365361

Adjacent sequences: A368558 A368559 A368560 * A368562 A368563 A368564

Keyword

nonn,easy

Author

Seiichi Manyama, Dec 30 2023

Status

approved