398529331200
domain: N
Appears in sequences
- Number of n X 2 arrays containing 2 copies of 0..n-1 with row sums equal.at n=13A268363
- a(n) is the denominator of r(n), where r(n) = r(n-1) + r(n-2)/(2*(n-1)) with r(0) = 0, r(1) = 1.at n=14A287596
- The n-volume of the unit regular n-simplex is sqrt(A364900(n))/a(n), with A364900(n) being squarefree.at n=13A364901