214610domain: NAppears in sequencesMacMahon's solid partitions of n in which 4 is the smallest summand.at n=17A002045Number 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), (0, 1, 1), (1, 0, 1), (1, 1, -1)}.at n=10A150129