A044526 Numbers n such that string 1,0 occurs in the base 7 representation of n but not of n+1.

7, 56, 105, 154, 203, 252, 301, 399, 448, 497, 546, 595, 644, 693, 742, 791, 840, 889, 938, 987, 1036, 1085, 1134, 1183, 1232, 1281, 1330, 1379, 1428, 1477, 1526, 1575, 1624, 1673, 1722, 1771, 1820, 1869, 1918, 1967, 2016