A043988 Numbers k such that 4 and 7 occur juxtaposed in the base-9 representation of k but not of k+1.

43, 67, 124, 148, 205, 229, 286, 310, 367, 395, 448, 472, 529, 553, 611, 634, 691, 715, 772, 796, 853, 877, 934, 958, 1015, 1039, 1096, 1124, 1177, 1201, 1258, 1282, 1340, 1363, 1420, 1444, 1501, 1525, 1582, 1606, 1663, 1687

Offset

1,1

Links

Table of n, a(n) for n=1..42.

Crossrefs

Cf. A007095.

Sequence in context: A146334 A039385 A043208 * A139499 A201688 A174022

Adjacent sequences: A043985 A043986 A043987 * A043989 A043990 A043991

Keyword

nonn,base

Author

Clark Kimberling

Status

approved