Expansion of e.g.f. exp( x * exp(x^2/2) ).

Terms

a(0) =1a(1) =1a(2) =1a(3) =4a(4) =13a(5) =46a(6) =241a(7) =1156a(8) =6889a(9) =44668a(10) =300241a(11) =2328976a(12) =18390901a(13) =159273544a(14) =1461200833a(15) =13995753136a(16) =144068872081