268704domain: NAppears in sequencesNumber of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=3, r=3, I={-1,0,2}.at n=25A079987Number of length-n 0..4 arrays with no repeated value differing from the previous repeated value by one or less.at n=7A269602