74994domain: NAppears in sequencesa(n) = ((n+1)-st Fibonacci number) - (n-th non-Fibonacci number).at n=23A014241Number 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, -1, 0), (-1, 0, 1), (0, -1, 1), (1, 1, 0)}.at n=10A149134