1316585

Appears in sequences

• Expansion of e.g.f.: log(1+tan(x)*cosh(x)).at n=9A009375
• arctan(tanh(x)*cos(x))=x-7/3!*x^3+165/5!*x^5-10827/7!*x^7...at n=4A012689
• E.g.f. log(sech(x) + tan(x)).at n=9A013204