A362103 a(n) = K(4,n), where K(M,n) = 2*(2*M+3)!*(4*n+2*M+1)!/((M+2)!*M!*n!*(3*n+2*M+3)!).

42, 330, 2310, 16170, 115500, 844074, 6301680, 47948670, 370952010, 2911858950, 23150207388, 186127769100, 1511405695800, 12382019142570, 102244420000800, 850316530400304, 7117336900424520, 59922942071869800, 507204902536897950

Offset

0,1

Links

Table of n, a(n) for n=0..18.

K. A. Penson, K. Górska, A. Horzela, and G. H. E. Duchamp, Hausdorff moment problem for combinatorial numbers of Brown and Tutte: exact solution, arXiv:2209.06574 [math.CO], 2022.

Crossrefs

Cf. A000260, A197271, A341853, A341854, A362104.

Sequence in context: A232338 A252937 A033277 * A190533 A190602 A134386

Adjacent sequences: A362100 A362101 A362102 * A362104 A362105 A362106

Keyword

nonn

Author

N. J. A. Sloane, Apr 13 2023

Status

approved