Number of 9-element subsets of {1, 2, ..., n} having pairwise coprime elements.

Terms

a(0) =8a(1) =8a(2) =8a(3) =8a(4) =89a(5) =90a(6) =164a(7) =168a(8) =238a(9) =244a(10) =1300a(11) =1301a(12) =4941a(13) =5734a(14) =6132a(15) =6379a(16) =7000a(17) =7089a(18) =22019a(19) =22975a(20) =24637a(21) =25150a(22) =67393a(23) =67678a(24) =160771a(25) =167602a(26) =174367a(27) =182152a(28) =395833a(29) =401344