51724

Appears in sequences

• a(n) = sum of n-th column in array in A100452.at n=38A100454
• Row sums of triangle A113084, which satisfies the recurrence: A113084(n,k) = [A113084^3](n-1,k-1) + [A113084^3](n-1,k).at n=5A113087
• 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=18A171694
• Number of ways to place 3 nonattacking wazirs on a 3 X n board.at n=23A172229