71574

Appears in sequences

• a(n) = (15*n^4 + 22*n^3 + 45*n^2 + 14*n) / 24.at n=18A101166
• Even numbers of the form floor( binomial(2k, 2j)/binomial(k, j)).at n=20A111304
• Expansion of g.f.: 4^n*n!*(1-y)^(n+1)*f(x, y, m), where f(x, y, m) = 2^(m+1)*exp(2^m*t)/((1-y*exp(t))*(1 + (2^(m+1)-1)*exp(2^m*t))), and m = -2.at n=44A171694
• Expansion of e.g.f.: exp(-3*x) / (2 - exp(x)).at n=8A346208
• Expansion of (1/x) * Series_Reversion( x*(1-x)^3/(1-x-x^2) ).at n=9A366082