117896domain: NAppears in sequencesNumber of circular permutations of length n with no consecutive triples (i, i+d, i+2d) (mod n) for all d.at n=6A174083Number of Dyck paths of semilength n having exactly 3 (possibly overlapping) occurrences of the consecutive steps UDUUDU (with U=(1,1), D=(1,-1)).at n=7A243415