4112640

Appears in sequences

• The coefficients (times n!) of the expansion of the sum {k=1 to Inf.} of Tan(x^n).at n=10A176475
• Integers k such that numerator and denominator of sigma(k)/k are both prime.at n=27A247086
• Expansion of e.g.f. Sum_{k>=1} tanh(x^k).at n=9A330504
• Expansion of e.g.f. exp(x^2 * (1 - x)) / (1 - x).at n=10A375412