A320682 Number of 7-element subsets of [n] having a prime element sum.

0, 2, 7, 32, 85, 191, 383, 760, 1429, 2601, 4455, 7275, 11312, 17084, 25203, 36725, 52631, 74199, 102482, 138942, 184934, 242638, 314286, 403242, 513039, 648580, 814890, 1018701, 1266791, 1567831, 1930440, 2365171, 2882192, 3493959, 4212425, 5052278, 6027955

Offset

7,2

Links

Alois P. Heinz, Table of n, a(n) for n = 7..500

Crossrefs

Column k=7 of A282516.

Sequence in context: A102161 A271817 A015655 * A344130 A327214 A334855

Adjacent sequences: A320679 A320680 A320681 * A320683 A320684 A320685

Keyword

nonn

Author

Alois P. Heinz, Oct 19 2018

Status

approved