220353

Appears in sequences

• sec(arcsin(x)*exp(x))=1+1/2!*x^2+6/3!*x^3+33/4!*x^4+220/5!*x^5...at n=8A012326
• E.g.f. satisfies: A(x) = x*(exp(tan(A(x)))).at n=7A133941