Expansion of e.g.f. tan(x)*tan(sinh(x)), even powers only.

A009749

Expansion of e.g.f. tan(x)*tan(sinh(x)), even powers only.

Terms

a(0) =

a(1) =

a(2) =

a(3) =

a(4) =

a(5) =

a(6) =

a(7) =

External references

oeis: A009749