-9944880

Appears in sequences

• Expansion of e.g.f.: sech(sin(x)*log(x+1)).at n=11A012289
• Expansion of e.g.f.: sech(arcsinh(x)*log(x+1))=1-12/4!*x^4+60/5!*x^5-210/6!*x^6...at n=11A012583