Number of ordered octuples of distinct pairwise coprime positive integers with largest element n.

Terms

a(0) =8a(1) =0a(2) =65a(3) =2a(4) =4a(5) =2a(6) =339a(7) =8a(8) =291a(9) =31a(10) =264a(11) =42a(12) =2576a(13) =8a(14) =6527a(15) =1436a(16) =967a(17) =610a(18) =1518a(19) =232a(20) =21395a(21) =1793a(22) =3123a(23) =1002a(24) =50310a(25) =540a(26) =93852a(27) =8394a(28) =8646a(29) =9696