G.f. A(x) satisfies A(x) = 1 + x/A(-x*A(x))^5.

Terms

a(0) =1a(1) =1a(2) =5a(3) =-5a(4) =-135a(5) =-110a(6) =3661a(7) =16440a(8) =-1375a(9) =-827075a(10) =-8388505a(11) =2298072a(12) =496514205a(13) =2782147265a(14) =322830120a(15) =-164675585390