Expansion of g.f.: 1/Sum_{p prime} x^p.

Terms

a(0) =1a(1) =-1a(2) =1a(3) =-2a(4) =3a(5) =-5a(6) =8a(7) =-12a(8) =19a(9) =-31a(10) =49a(11) =-78a(12) =124a(13) =-196a(14) =312a(15) =-497a(16) =789a(17) =-1254a(18) =1993a(19) =-3166a(20) =5033a(21) =-8000a(22) =12712a(23) =-20202a(24) =32106a(25) =-51023a(26) =81090a(27) =-128872a(28) =204804a(29) =-325483