Expansion of e.g.f. exp(exp(-x) - 1)/(1 - x).

Terms

a(0) =1a(1) =0a(2) =2a(3) =1a(4) =19a(5) =43a(6) =461a(7) =2350a(8) =22940a(9) =185313a(10) =1969105a(11) =20981585a(12) =255992617a(13) =3300259584a(14) =46394533498a(15) =694535043925