635040

Appears in sequences

• Lah numbers: a(n) = n!*binomial(n-1,5)/6!.at n=4A001778
• a(n) = n + (n+1)^2 + (n+2)^3 + (n+3)^4.at n=25A027621
• Expansion of e.g.f. (1-x^2)*(1-x)/(1-2x-x^2+x^3).at n=7A052658
• Coefficient triangle of generalized Laguerre polynomials n!*L(n,3,x) (rising powers of x).at n=30A062137
• Third column sequence of coefficient triangle A062137 of generalized Laguerre polynomials n!*L(n,3,x).at n=5A062141
• Numbers which can be expressed as product of a number and its reversal in at least three different ways.at n=0A066590
• a(n) = smallest number which can be expressed as the product of a number and its reversal in exactly n different ways.at n=2A066599
• a(0) = 1, a(n) = 20*sigma[3](n).at n=30A091983
• Denominator of Sum_{k=0..2*n} (-1)^k/binomial(2*n, k)^2.at n=5A100521
• Magic products of 5 X 5 multiplicative magic squares.at n=27A111031
• Triangle T(n,k) is the number of partitions of an n-set into lists (cf. A000262) with k lists of size 1.at n=47A114329
• Triangle of unsigned 2-Lah numbers.at n=30A143497
• Partition number array, called M32(-4), related to A011801(n,m)= |S2(-4;n,m)| ( generalized Stirling triangle).at n=32A144267
• Triangle read by rows: the coefficient [t^n x^k] of n!*(n+2)! *exp(x*t) *(t*(1-2*exp(t))-2*exp(t)) / (2*(1-exp(t))), in row n, k=0..n+1.at n=40A176989
• Irregular triangle T(n,k) = A096162(n,k) * A036040(n,k) * A048996(n,k) * A098546(n,k) * A178886(n,k), read by rows, 1 <= k <= A000041(n).at n=43A179236
• Number of nX4 array permutations with every element making zero or one right-handed knight moves (out 2, right 1).at n=6A209539
• Number of nX7 array permutations with every element making zero or one right-handed knight moves (out 2, right 1).at n=3A209542
• T(n,k)=Number of nXk array permutations with every element making zero or one right-handed knight moves (out 2, right 1).at n=48A209543
• T(n,k)=Number of nXk array permutations with every element making zero or one right-handed knight moves (out 2, right 1).at n=51A209543
• Number of stretching pairs in all permutations in S_n.at n=8A216119