399168000

Appears in sequences

• The number of permutations of n cards in which 2 is the first card hit and 3 the next hit after 2.at n=11A018931
• Unary-binary rooted trees with n nodes.at n=11A029766
• a(n) = n! * (n-1).at n=10A062119
• Denominators of the column sums of the ZG1 matrix.at n=4A162447
• Number of permutations of 1..n with no adjacent pair summing to n+10.at n=12A173850
• a(n) is the period k such that binomial(m, n) (mod 10) = binomial(m + k, n) (mod 10).at n=11A174183
• The coefficients (times n!) of the expansion of the sum {k=1 to Inf.} of Sin(x^n).at n=12A176473
• Expansion of (x*exp(x)/(exp(x)-1))^2 = sum(n>=0, a(n)/(n!*(n+1)!)*x^n).at n=11A191368
• 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=64A257503
• 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=56A257505
• Expansion of e.g.f. Sum_{k>=1} arcsinh(x^k).at n=11A330512
• Number of cyclic Latin squares of order n.at n=10A338522
• Expansion of e.g.f. 1/(1 + (log(1 - x^3))/x^2).at n=11A375799