-906141171

Appears in sequences

• sin(sec(x)*arcsin(x))=x+3/3!*x^3+5/5!*x^5-889/7!*x^7-82167/9!*x^9...at n=6A012783
• Expansion of e.g.f.: exp(sech(x)*arcsinh(x))=1+x+1/2!*x^2-3/3!*x^3-15/4!*x^4+5/5!*x^5...at n=13A012881