Expansion of e.g.f. tan(arcsin(arcsin(x))).

A012065

Expansion of e.g.f. tan(arcsin(arcsin(x))).

Terms

    a(0) =1a(1) =4a(2) =84a(3) =4152a(4) =370128a(5) =51861888a(6) =10494283968

External references