%I #8 Jun 01 2025 19:57:18

%S 1,1,1,18,215,5320,173111,8041166,483906047,37296199680,3556982106479,

%T 412503302058958

%N 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)]].

%Y Cf. A324563, A324564.

%K nonn,more

%O 0,4

%A _Alois P. Heinz_, Mar 09 2019