E.g.f.: exp( Sum_{n>=1} x^prime(n) / prime(n) ).

Terms

a(0) =1a(1) =0a(2) =1a(3) =2a(4) =3a(5) =44a(6) =55a(7) =1434a(8) =3913a(9) =39752a(10) =392481a(11) =5109290a(12) =34683451a(13) =914698212a(14) =5777487703a(15) =91494090674