3225600

Appears in sequences

• Triangle of coefficients of certain exponential convolution polynomials.at n=23A048786
• a(n) = (n+1)*2^n*(2*n)!.at n=4A065141
• Triangle read by rows: T(m,k) = normalized partial derivative of (t,z) -> exp(t*g(z)) at (0,0), where 2*g(z) = 1 + exp(-2*z*g(z)).at n=25A078751
• Number of divisors of n! that are coprime to n.at n=43A095997
• Triangle read by rows: T(n,k) = count of increasing runs in two concatenated k-permutations of [n].at n=24A122823
• a(n) = n*(n+2)*n!.at n=8A130744
• Triangle T(n, k) = n*( (n-1)! - (k-1)! ), read by rows.at n=53A137259
• Lower triangular array called S1hat(5) related to partition number array A144890.at n=37A144891
• Second column (m=2) of triangle A144891 (S1hat(5)).at n=7A144893
• a(n) = product of numbers k <= n such that not all proper divisors of k are divisors of n.at n=17A158978
• Triangle read by rows: T(n,m) = A094310(n,m)*A120070(n+1,m), 1 <= m <= n.at n=28A165969
• Triangle read by rows: T(n,k) (n>=1, 1 <= k <= n) = number of permutations of [1..n] in which none of the cycle lengths are divisible by k.at n=53A213280
• Square array A(row,col) read by antidiagonals: A(1,col) = A256450(col-1), and for row > 1, A(row,col) = A255411(A(row-1,col)); Dispersion of factorial base shift A255411 (array transposed).at n=52A257503
• Square array A(row,col): A(row,1) = A256450(row-1), and for col > 1, A(row,col) = A255411(A(row,col-1)); Dispersion of factorial base shift A255411.at n=47A257505
• The number of magic quad squares that can be formed using cards from Quads-2^n deck.at n=0A361613