398248domain: NAppears in sequencesp-INVERT of the positive integers, where p(S) = (1 - S)^4.at n=9A290919Number of permutations p of [n] such that |p(i) - p(i-1)| is in {1,3} for all i from 2 to n.at n=26A302118Even composite positive integers m such that A052918(m-1)^2 == 1 (mod m).at n=24A338313