A320680 Number of 5-element subsets of [n] having a prime element sum.
0, 2, 7, 13, 31, 59, 110, 191, 322, 497, 743, 1053, 1469, 1998, 2698, 3574, 4696, 6051, 7710, 9663, 11998, 14718, 17957, 21715, 26130, 31196, 37041, 43632, 51121, 59468, 68839, 79212, 90775, 103504, 117648, 133203, 150449, 169407, 190387, 213403, 238807
Offset: 5
Keywords
Links
- Alois P. Heinz, Table of n, a(n) for n = 5..500
Crossrefs
Column k=5 of A282516.