582120

Appears in sequences

• Least common multiple of all cycle sizes in range [A014137(n-1)..A014138(n-1)] of permutation A071661/A071662.at n=9A089403
• Triangle T(n,k), 0<=k<=n, read by rows, defined by : T(0,0) = 1, T(n,k) = 0 if n<k or if k<0, T(n,k) = k*T(n-1, k-1) + (2n-2k-1)*T(n-1, k).at n=38A108032
• Integers that can be expressed as a product of triangular numbers in 3 different ways.at n=14A110904
• Magic products of 5 X 5 multiplicative magic squares.at n=21A111031
• Triangle of z Transform coefficients from General Pascal [1,8,1} A142458 polynomials multiplied by factor 3^Floor[(2*k - 1)/3].at n=33A167786
• A triangle whose rows add up to the numerators of the Bernoulli numbers (with B(1) = 1/2). T(n, k) for n >= 0, 0 <= k <= n.at n=52A194587
• Triangle read by rows: T(n,k) = binomial(2*n,k)*Stirling2(2*n-k,n).at n=24A226703
• Numbers k such that floor(Sum_{d|k} 1 / sigma(d)) = 3.at n=19A265713
• Heinz number of the integer partition whose parts are the multiplicities in the multiset union of all strict integer partitions of n.at n=10A325513
• Triangle read by rows: T(n,k) is the number of trees with n leaves of exactly k colors and all non-leaf nodes having degree 3.at n=53A339650