Expansion of e.g.f. exp(arcsinh(arcsin(x))).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =9a(6) =49a(7) =225a(8) =897a(9) =11025a(10) =96801a(11) =893025a(12) =6803457a(13) =108056025a(14) =1275363153a(15) =18261468225a(16) =207592347393