A089196 Floor(n / (smallest prime factor of n+1)).

0, 0, 1, 0, 2, 0, 3, 2, 4, 0, 5, 0, 6, 4, 7, 0, 8, 0, 9, 6, 10, 0, 11, 4, 12, 8, 13, 0, 14, 0, 15, 10, 16, 6, 17, 0, 18, 12, 19, 0, 20, 0, 21, 14, 22, 0, 23, 6, 24, 16, 25, 0, 26, 10, 27, 18, 28, 0, 29, 0, 30, 20, 31, 12, 32, 0, 33, 22, 34, 0, 35, 0, 36, 24, 37, 10, 38, 0, 39, 26, 40