17936130

Appears in sequences

• a(n) = (3^n-1)*(n+1)/4.at n=13A261064
• Expansion of e.g.f. x*exp(x)*cosh(x)*sinh(x).at n=15A360035
• Expansion of e.g.f. x*exp(x)*(sinh(x))^2.at n=15A360036