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A043145 Numbers k such that 2 and 6 occur juxtaposed in the base-7 representation of k but not of k-1. 0
20, 44, 69, 93, 118, 140, 167, 191, 216, 240, 265, 289, 308, 338, 363, 387, 412, 436, 461, 483, 510, 534, 559, 583, 608, 632, 651, 681, 706, 730, 755, 779, 804, 826, 853, 877, 902, 926, 951, 975, 980, 1049, 1073, 1098, 1122 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..45.

CROSSREFS

Cf. A007093.

Sequence in context: A220006 A295795 A039322 * A043925 A211459 A256870

Adjacent sequences:  A043142 A043143 A043144 * A043146 A043147 A043148

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified June 29 05:44 EDT 2022. Contains 354910 sequences. (Running on oeis4.)