A044809 Numbers n such that string 9,6 occurs in the base 10 representation of n but not of n+1.

96, 196, 296, 396, 496, 596, 696, 796, 896, 969, 996, 1096, 1196, 1296, 1396, 1496, 1596, 1696, 1796, 1896, 1969, 1996, 2096, 2196, 2296, 2396, 2496, 2596, 2696, 2796, 2896, 2969, 2996, 3096, 3196, 3296, 3396, 3496, 3596