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A318592 Number of n-member subsets of [4*n] whose elements sum to a multiple of four. 2
1, 1, 6, 55, 460, 3876, 33594, 296010, 2630044, 23535820, 211911256, 1917334783, 17417167156, 158753389900, 1451182694940, 13298522298180, 122131736900380, 1123787895356412, 10358022417860040, 95615237915961100, 883829035764950960, 8179808679272664720 (list; graph; refs; listen; history; text; internal format)
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 * A253475 A215853 A110431

Adjacent sequences:  A318589 A318590 A318591 * A318593 A318594 A318595

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Aug 29 2018

STATUS

approved

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Last modified May 23 03:10 EDT 2019. Contains 323507 sequences. (Running on oeis4.)