A318592 Number of n-member subsets of [4*n] whose elements sum to a multiple of four.

1, 1, 6, 55, 460, 3876, 33594, 296010, 2630044, 23535820, 211911256, 1917334783, 17417167156, 158753389900, 1451182694940, 13298522298180, 122131736900380, 1123787895356412, 10358022417860040, 95615237915961100, 883829035764950960, 8179808679272664720

Offset

0,3

Links

Alois P. Heinz, Table of n, a(n) for n = 0..1000

Example

a(2) = 6: {1,3}, {1,7}, {2,6}, {3,5}, {4,8}, {5,7}.

Crossrefs

Column k=4 of A318557.

Sequence in context: A295094 A295548 A198855 * A342388 A253475 A215853

Adjacent sequences: A318589 A318590 A318591 * A318593 A318594 A318595

Keyword

nonn

Author

Alois P. Heinz, Aug 29 2018

Status

approved