230555domain: NAppears in sequencesa(n) = C(n,a)+C(n,b)+C(n,c)... where n = abc... are the decimal digits of n.at n=26A111696Number 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), (0, 1, 0), (1, -1, -1), (1, 1, 0)}.at n=10A150063