Number of subsets of {1, 2, ..., n} containing n and having <=7 pairwise coprime elements.

Terms

a(0) =1a(1) =2a(2) =4a(3) =4a(4) =12a(5) =4a(6) =28a(7) =16a(8) =32a(9) =12a(10) =116a(11) =16a(12) =248a(13) =48a(14) =72a(15) =112a(16) =720a(17) =64a(18) =1447a(19) =190a(20) =380a(21) =254a(22) =3444a(23) =247a(24) =2795a(25) =701a(26) =2410a(27) =784a(28) =11588a(29) =247