A032977 - OEIS

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A032977

Numbers with the property that all pairs of consecutive base-6 digits differ by 0 or 1.

1, 2, 3, 4, 5, 6, 7, 8, 13, 14, 15, 20, 21, 22, 27, 28, 29, 34, 35, 36, 37, 42, 43, 44, 49, 50, 51, 78, 79, 80, 85, 86, 87, 92, 93, 94, 121, 122, 123, 128, 129, 130, 135, 136, 137, 164, 165, 166, 171, 172, 173, 178, 179, 207, 208, 209, 214

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

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..57.

MATHEMATICA

Select[Range[250], Max[Abs[Differences[IntegerDigits[#, 6]]]]<2&] (* Harvey P. Dale, Mar 09 2012 *)

CROSSREFS

Cf. A007092.

Sequence in context: A254116 A254115 A032986 * A133245 A200374 A033080

Adjacent sequences: A032974 A032975 A032976 * A032978 A032979 A032980

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved