38837domain: NAppears in sequencesDenominators of continued fraction convergents to sqrt(549).at n=11A042051Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (0, 0, 1), (1, -1, 0), (1, 0, 1), (1, 1, -1)}.at n=8A150555