1310660

Appears in sequences

• Expansion of e.g.f.: sec(cos(x)*log(x+1))=1+1/2!*x^2-3/3!*x^3+4/4!*x^4-40/5!*x^5...at n=10A012472
• a(n) = 5*2^(n+1) - 3*(n+3).at n=17A169831