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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<p(i)]];
2
1, 1, 1, 18, 215, 5320, 173111, 8041166, 483906047, 37296199680, 3556982106479, 412503302058958
OFFSET
0,4
CROSSREFS
Sequence in context: A125430 A021764 A059357 * A009470 A111991 A081136
KEYWORD
nonn,more
AUTHOR
Alois P. Heinz, Mar 09 2019
STATUS
approved