812851200

Appears in sequences

• Number of Latin squares of order n; or labeled quasigroups.at n=5A002860
• Denominator of the O(x^2) term in the Maclaurin series of the square of the Jacobi polynomial P^{a,b}_n(z) about z=1-x for real positive x.at n=6A108214
• a(n) = (n!)^2/2.at n=6A123385
• Number of nX5 1..(max n,5) arrays with each row and column having unrepeated values.at n=5A221435
• Number of nX6 1..(max n,6) arrays with each row and column having unrepeated values.at n=4A221436
• Number of nX6 1..(max n,6) arrays with each row and column having unrepeated values.at n=5A221436
• One half of the denominators of the partial sums of dilog(1/2).at n=8A242597
• One half of the denominators of the partial sums of dilog(1/2).at n=9A242597
• Array read by antidiagonals upwards: T(d,n) = number of d-dimensional permutations of n letters (d >= 0, n >= 1).at n=33A249026
• Array read by antidiagonals upwards: T(d,n) = number of d-dimensional permutations of n letters (d >= 1, n >= 1).at n=26A249027
• Number of permutations of length n that possess the maximal sum of distances between contiguous elements.at n=17A328378
• Array T(n, m) read by ascending antidiagonals: denominators of shifted Fubini numbers F(n, m) where m >= 0.at n=52A338876
• Numbers with a record number of non-unitary square divisors.at n=30A358253
• Number of even parity alternating permutations of [1..n] starting with an odd integer.at n=16A364849