A359716 Central terms of triangle A236961: a(n) = A236961(2*n,n) for n >= 0.

1, 2, 21, 412, 12045, 471666, 23248400, 1384919040, 96891179337, 7793576690170, 709024597553360, 72011978446738452, 8079309076956842530, 992583434486548102576, 132551565601036631863350, 19120614257204406476219136, 2963248125855567894279025917, 491063205808744535843792510886

Offset

0,2

Comments

Triangle A236961 transforms diagonals in the table of coefficients in the successive iterations of g.f. of A236960 such that column 0 equals A236961(n,0) = n^n.

Links

Paul D. Hanna, Table of n, a(n) for n = 0..31

Crossrefs

Cf. A236961, A236960.

Sequence in context: A263625 A245686 A091315 * A087546 A090729 A090310

Adjacent sequences: A359713 A359714 A359715 * A359717 A359718 A359719

Keyword

nonn

Author

Paul D. Hanna, Jan 15 2023

Status

approved