-34544

Appears in sequences

• Expansion of e.g.f. log(1 + tan(x)).at n=8A003707
• a(n) = (2*n)! [x^(2*n)] log(1 + tanh(x)^2)/2.at n=4A024299
• Integer solutions to n^4 = x^3 + y^2 (values of x sorted by n).at n=15A221744