G.f.: Product_{k>=1} (1-prime(k)*x^prime(k)).

Terms

a(0) =1a(1) =0a(2) =-2a(3) =-3a(4) =0a(5) =1a(6) =0a(7) =3a(8) =15a(9) =14a(10) =-9a(11) =-11a(12) =-7a(13) =9a(14) =-37a(15) =-79a(16) =28a(17) =193a(18) =-46a(19) =-150a(20) =-142a(21) =-58a(22) =-142a(23) =171a(24) =73a(25) =652a(26) =643a(27) =349a(28) =-1047a(29) =404