71727domain: NAppears in sequencesNumbers k such that k, k+2, k+4, k+6, k+8, k+10 are semiprimes.at n=29A092128Number 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, 0, -1), (1, 1, 0), (1, 1, 1)}.at n=8A150939