119249domain: NAppears in sequencesNumbers n such that n-1, n and n+1 can be expressed as a sum of 2 squares in at least 2 ways.at n=24A091459Number 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, 0), (-1, 0, -1), (0, 0, 1), (1, -1, -1), (1, 1, -1)}.at n=12A148225