A043446 Numbers n such that number of 6's in base 8 is 2.

54, 118, 182, 246, 310, 374, 390, 398, 406, 414, 422, 430, 432, 433, 434, 435, 436, 437, 439, 446, 502, 566, 630, 694, 758, 822, 886, 902, 910, 918, 926, 934, 942, 944, 945, 946, 947, 948, 949, 951, 958, 1014, 1078, 1142, 1206