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A043993 Numbers n such that 6 and 7 occur juxtaposed in the base 9 representation of n but not of n+1. 0
61, 69, 142, 150, 223, 231, 304, 312, 385, 393, 466, 474, 547, 557, 629, 636, 709, 717, 790, 798, 871, 879, 952, 960, 1033, 1041, 1114, 1122, 1195, 1203, 1276, 1286, 1358, 1365, 1438, 1446, 1519, 1527, 1600, 1608, 1681, 1689 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

CROSSREFS

Sequence in context: A090154 A039390 A043213 * A165287 A064229 A180555

Adjacent sequences:  A043990 A043991 A043992 * A043994 A043995 A043996

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified November 13 19:25 EST 2018. Contains 317149 sequences. (Running on oeis4.)