A043131 - OEIS

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A043131

Numbers k such that 0 and 1 occur juxtaposed in the base-7 representation of k but not of k-1.

0

7, 49, 99, 105, 148, 154, 197, 203, 246, 252, 295, 301, 343, 442, 448, 491, 497, 540, 546, 589, 595, 638, 644, 687, 693, 735, 785, 791, 834, 840, 883, 889, 932, 938, 981, 987, 1030, 1036, 1078, 1128, 1134, 1177, 1183, 1226

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..44.

CROSSREFS

Sequence in context: A357302 A343771 A008461 * A082701 A044145 A152777

Adjacent sequences: A043128 A043129 A043130 * A043132 A043133 A043134

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved