1606210571

Appears in sequences

• Expansion of log(1+log(1+x)*cosh(x)).at n=11A009320
• log(sech(x)+log(x+1)) = x - 3/2!*x^2 + 10/3!*x^3 - 51/4!*x^4 + 373/5!*x^5 + ...at n=11A013201