A043255 Numbers k such that 6 and 7 occur juxtaposed in the base-10 representation of k but not of k-1.

67, 76, 167, 176, 267, 276, 367, 376, 467, 476, 567, 576, 667, 670, 760, 776, 867, 876, 967, 976, 1067, 1076, 1167, 1176, 1267, 1276, 1367, 1376, 1467, 1476, 1567, 1576, 1667, 1670, 1760, 1776, 1867, 1876, 1967, 1976, 2067

Offset

1,1

Links

Table of n, a(n) for n=1..41.

Crossrefs

Sequence in context: A345214 A277429 A039432 * A044035 A124476 A066475

Adjacent sequences: A043252 A043253 A043254 * A043256 A043257 A043258

Keyword

nonn,base

Author

Clark Kimberling

Status

approved