Expansion of e.g.f. (1 - x)^(-x^4).

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =120a(6) =360a(7) =1680a(8) =10080a(9) =72576a(10) =2419200a(11) =25660800a(12) =279417600a(13) =3286483200a(14) =41894012160a(15) =794511244800