a(n) = numerator of Product_{k=1..n} k^mu(n+1-k), where mu(k) = A008683(k).

Terms

a(0) =1a(1) =2a(2) =3a(3) =2a(4) =5a(5) =3a(6) =7a(7) =1a(8) =3a(9) =25a(10) =22a(11) =21a(12) =104a(13) =21a(14) =20a(15) =11a(16) =408a(17) =585a(18) =380a(19) =55a(20) =6272a(21) =2431a(22) =14904a(23) =95a(24) =176000a(25) =25857a(26) =1008a(27) =149891a(28) =356352a(29) =10625