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A043146 Numbers k such that 3 and 4 occur juxtaposed in the base-7 representation of k but not of k-1. 0
25, 31, 74, 80, 123, 129, 172, 175, 217, 227, 270, 276, 319, 325, 368, 374, 417, 423, 466, 472, 515, 518, 560, 570, 613, 619, 662, 668, 711, 717, 760, 766, 809, 815, 858, 861, 903, 913, 956, 962, 1005, 1011, 1054, 1060, 1103 (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: A157646 A198003 A039323 * A043926 A202000 A118669

Adjacent sequences:  A043143 A043144 A043145 * A043147 A043148 A043149

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified September 29 17:34 EDT 2022. Contains 357090 sequences. (Running on oeis4.)