740522domain: NAppears in sequencesStart of record gap in even semiprimes (A100484).at n=16A114058Number 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), (0, 1, 0), (1, -1, 1), (1, 1, -1)}.at n=10A150264