A043163 Numbers k such that 1 and 6 occur juxtaposed in the base-8 representation of k but not of k-1.

14, 49, 78, 112, 142, 177, 206, 241, 270, 305, 334, 369, 392, 433, 462, 497, 526, 561, 590, 624, 654, 689, 718, 753, 782, 817, 846, 881, 896, 974, 1009, 1038, 1073, 1102, 1136, 1166, 1201, 1230, 1265, 1294, 1329, 1358, 1393