A324638
Number of permutations p of [2n] such that n is the maximum of 0 and the number of elements in any integer interval [p(i)..i+2n*[i
1, 1, 1, 18, 215, 5320, 173111, 8041166, 483906047, 37296199680, 3556982106479, 412503302058958
Offset: 0