162188

Appears in sequences

• Expansion of e.g.f.: sec(cosh(x)*log(x+1))=1+1/2!*x^2-3/3!*x^3+28/4!*x^4-160/5!*x^5...at n=8A012762
• n*10^6-1, n*10^6-3, n*10^6-7 and n*10^6-9 are all prime.at n=16A064980