61490

Appears in sequences

• Triangle of central factorial numbers T(2*n,2*n-2*k), k >= 0, n >= 1 (in Riordan's notation).at n=31A008957
• Distinct even elements in 3-Pascal triangle A028262 (by row).at n=37A028269
• Central elements in 3-Pascal triangle A028262 (by row).at n=9A028270
• Table read by rows: list of even numbers to the right of the central elements of the (2,3)-Pascal triangle A029600.at n=31A029617
• Even numbers to left of central elements of the (3,2)-Pascal triangle A029618.at n=38A029631
• 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=32A036969
• Duplicate of A028270.at n=9A081497
• Constant term of the reduction by x^2->x+1 of the polynomial p(n,x) defined below in Comments.at n=19A192754
• Number of partitions of n in which two summands (of each size) are designated.at n=29A255180
• 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=41A269945
• a(n) = Sum_{k=1..n} Sum_{j=1..k} Sum_{i=1..j} (i*j*k)^2.at n=5A351105
• Expansion of 1/((1-x) * (1-4*x) * (1-9*x) * (1-16*x) * (1-25*x)).at n=3A383840
• Consecutive states of the linear congruential pseudo-random number generator 228*s mod (2^16+1) when started at s=1.at n=5A385079