A044182 Numbers n such that string 6,2 occurs in the base 7 representation of n but not of n-1.

44, 93, 142, 191, 240, 289, 308, 338, 387, 436, 485, 534, 583, 632, 651, 681, 730, 779, 828, 877, 926, 975, 994, 1024, 1073, 1122, 1171, 1220, 1269, 1318, 1337, 1367, 1416, 1465, 1514, 1563, 1612, 1661, 1680, 1710, 1759, 1808