Number of subsets of {1, 2, ..., n} containing n and having <=8 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) =728a(17) =64a(18) =1512a(19) =192a(20) =384a(21) =256a(22) =3783a(23) =255a(24) =3086a(25) =732a(26) =2674a(27) =826a(28) =14164a(29) =255