1604059136domain: NAppears in sequencesTriangle T, read by rows, where column 0 of T^m = {C(m*2^n, n), n>=0} for all m.at n=32A136470Number of n X 2 0..3 arrays with no element equal to another within two positions in the same row or column, and new values 0..3 introduced in row major order.at n=18A206687