22056

Appears in sequences

• a(n) = 1728*n - 408.at n=12A157266
• Variation on Delannoy array/triangle; based on a triangular sum with the base multiplied by 2.at n=46A165251
• Variation on Delannoy array/triangle; based on a triangular sum with the base multiplied by 2.at n=48A165251
• Number of 1:3:sqrt(10) proportioned triangles on a (n+1) X (n+1) grid.at n=17A190102
• a(n) = 12*n^3 + 9*n^2 + 2*n.at n=12A191745
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 507", based on the 5-celled von Neumann neighborhood.at n=29A272587
• a(n) = [x^n] (1/6 * Sum_{k=0..n} (k+3)!*x^k)^(1/2).at n=6A303613
• Sum of the corners of a 2n+1 X 2n+1 square spiral.at n=36A325958
• a(n) = Sum_{k=0..n} (-1)^(n - k) * binomial(n, k) * binomial(n + k - 1, n - k).at n=11A350290