Number of 7-element subsets of {1, 2, ..., n} having pairwise coprime elements.

Terms

a(0) =6a(1) =6a(2) =6a(3) =8a(4) =64a(5) =65a(6) =284a(7) =297a(8) =324a(9) =339a(10) =1116a(11) =1144a(12) =1784a(13) =1886a(14) =2449a(15) =2576a(16) =6499a(17) =6527a(18) =14386a(19) =16178a(20) =17683a(21) =18649a(22) =21003a(23) =21395a(24) =42708a(25) =44997a(26) =48966a(27) =50310a(28) =93138a(29) =93852