204448domain: NAppears in sequencesPermanent of a certain cyclic n X n (0,1) matrix.at n=12A000805Number of permutations p of [n] such that (n-p(i)+i) mod n >= 6 for all i.at n=12A184965Number of permutations of [n] allowing i->i+j (mod n), j=0..ceiling(n/2)-1.at n=12A306738