41487domain: NAppears in sequencesNumbers k such that k!! + 2^8 is prime.at n=20A076195Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 0), (-1, 1, 1), (1, 0, -1), (1, 0, 1)}.at n=9A149295