225680

Appears in sequences

• Expansion of log(1+sin(x)*cosh(x)).at n=9A009339
• E.g.f.: arctan(sinh(x)*cos(x)) = x - 4/3!*x^3 + 60/5!*x^5 - 2784/7!*x^7 + 225680/9!*x^9...at n=4A012567
• Expansion of e.g.f. log(sech(x) + sin(x)).at n=9A013202
• n*(n-1)*(n-2)*(n-3)*(n-4)*(2*n-1)/72.at n=16A055504
• a(n) = n*(n-1)*(n+1)*(3*n-2)/12.at n=30A153978
• Numbers k such that binomial(k^2,k) == 0 (mod k^3).at n=36A371474