A286789 Column 4 of A286781.

1, 80, 3550, 125195, 4009832, 124266346, 3854188670, 121943460540, 3979525634005, 134806148044750, 4756728585598416, 175132764223880035, 6731931366383154760, 270129431174068396380, 11308903054417009540644, 493544598057755406560688, 22431785171561428611320865

Offset

4,2

Links

Gheorghe Coserea, Table of n, a(n) for n = 4..213

Crossrefs

Cf. A286781, A286786, A286787.

Sequence in context: A017743 A234325 A196280 * A264372 A004390 A247861

Adjacent sequences: A286786 A286787 A286788 * A286790 A286791 A286792

Keyword

nonn

Author

Gheorghe Coserea, May 16 2017

Status

approved