Expansion of e.g.f. -exp(x * sqrt(1-2*x)).

Terms

a(0) =-1a(1) =-1a(2) =1a(3) =8a(4) =23a(5) =64a(6) =479a(7) =6026a(8) =80863a(9) =1194488a(10) =19951919a(11) =374005774a(12) =7768598111a(13) =177019006748