327604domain: NAppears in sequencesPermanent of (0,1)-matrix of size n X (n+d) with d=3 and n-1 zeros not on a line.at n=6A090013Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0) and consisting of n steps taken from {(-1, -1), (-1, 1), (1, 0)}.at n=16A151255