234348domain: NAppears in sequencesNumber of distinct solutions of Sum_{i=1..3}(x(2i-1)*x(2i)) = 0 (mod n), with x() in 0..n-1.at n=23A180795Number of n X 6 0..1 arrays with rows and columns unimodal and antidiagonals nondecreasing.at n=9A223775