A043977 Numbers k such that 2 and 5 occur juxtaposed in the base-9 representation of k but not of k+1.

23, 47, 104, 128, 185, 215, 266, 290, 347, 371, 431, 452, 509, 533, 590, 614, 671, 695, 752, 776, 833, 857, 914, 944, 995, 1019, 1076, 1100, 1160, 1181, 1238, 1262, 1319, 1343, 1400, 1424, 1481, 1505, 1562, 1586, 1643, 1673

Offset

1,1

Links

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

Crossrefs

Cf. A007095.

Sequence in context: A352291 A039374 A043197 * A042048 A347008 A239563

Adjacent sequences: A043974 A043975 A043976 * A043978 A043979 A043980

Keyword

nonn,base

Author

Clark Kimberling

Status

approved