Expansion of tan(tan(x))*sinh(x)/2.

A024294

Expansion of tan(tan(x))*sinh(x)/2.

Terms

    a(0) =0a(1) =1a(2) =10a(3) =259a(4) =13716a(5) =1202597a(6) =156277214a(7) =28120098599

External references