56133000

Appears in sequences

• tanh(log(x+1)-arcsinh(x))=-1/2!*x^2+3/3!*x^3-6/4!*x^4+15/5!*x^5...at n=12A013277
• a(n) = 5!*n*Stirling2(n-1, 5).at n=11A052785