a(n) = A000040(A096480(n)).

Terms

a(0) =2a(1) =19a(2) =11a(3) =79a(4) =53a(5) =47a(6) =137a(7) =331a(8) =293a(9) =971a(10) =457a(11) =263a(12) =367a(13) =1231a(14) =757a(15) =3607a(16) =1229a(17) =1663a(18) =6131a(19) =12227a(20) =1879a(21) =1831a(22) =10733a(23) =8423a(24) =9221a(25) =7393a(26) =3793a(27) =32941a(28) =19213a(29) =45863