183424

Appears in sequences

• Expansion of e.g.f.: arctanh(arctanh(x)+log(x+1))=2*x-1/2!*x^2+20/3!*x^3-54/4!*x^4...at n=7A013163
• Number of subsets of {2..n} containing the product of any set of distinct elements whose product is <= n.at n=19A308542