57088

Appears in sequences

• a(n) = Sum_{k=0..2n} (k+1) * A027082(n, k).at n=8A027106
• a(n) = 15n^2 + 13n^3.at n=16A085377
• a(n) = 2^n*pentanacci(n) or (2^n)*A023424(n-1).at n=7A127221
• a(n) = 4*a(n-1) - 4*a(n-2) + 2*a(n-4), with a(0)=a(1)=a(2)=0, and a(3)=1.at n=14A135248
• T(n,k) = numerator of 2*Pi*Sum_{j=0..n-k-1} ((-1)^j*n*(k + j + 2)*(n + k +j)!*(k + j)!^2)/((n - k - j - 1)!*(2*k + j + 1)!*j!*Gamma(k + j + 3/2)*Gamma(k + j + 5/2)), triangle read by rows (n >= 1, 0 <= k <= n - 1).at n=11A159982
• Expansion of Product_{k>=1} 1/(1-x^(k+7))^k.at n=50A263363
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 414", based on the 5-celled von Neumann neighborhood.at n=16A288053
• Numbers k such that sigma(k) = psi(k) + phi(k) + omega(k)^5.at n=5A391908