447839domain: NAppears in sequencesInteger part of square root of n-th primorial, A002110(n).at n=11A060797Number 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, 1), (1, -1, 0), (1, 0, -1), (1, 1, 1)}.at n=10A149710