A043258 Numbers k such that 7 and 8 occur juxtaposed in the base-10 representation of k but not of k-1.

78, 87, 178, 187, 278, 287, 378, 387, 478, 487, 578, 587, 678, 687, 778, 780, 870, 887, 978, 987, 1078, 1087, 1178, 1187, 1278, 1287, 1378, 1387, 1478, 1487, 1578, 1587, 1678, 1687, 1778, 1780, 1870, 1887, 1978, 1987, 2078

Offset

1,1

Links

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

Crossrefs

Sequence in context: A053083 A246487 A039435 * A044038 A025386 A045193

Adjacent sequences: A043255 A043256 A043257 * A043259 A043260 A043261

Keyword

nonn,base

Author

Clark Kimberling

Status

approved