118482

Appears in sequences

• Expansion of 1/((1-x)*(1-4*x)*(1-9*x)).at n=5A002451
• Triangle of central factorial numbers T(2*n,2*n-2*k), k >= 0, n >= 1 (in Riordan's notation).at n=33A008957
• Triangle read by rows: T(n,k) = T(n-1,k-1) + k^2*T(n-1,k), 1 < k <= n, T(n,1) = 1.at n=30A036969
• Number of ways to arrange 3 indistinguishable points on an n X n X n triangular grid so that no three points are in the same row or diagonal.at n=12A194475
• Triangle read by rows. Stirling set numbers of order 2, T(n, n) = 1, T(n, k) = 0 if k < 0 or k > n, otherwise T(n, k) = T(n-1, k-1) + k^2*T(n-1, k), for 0 <= k <= n.at n=39A269945
• Two-Catalan Triangle read by rows, for n>=0 and k>=0.at n=52A380912