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A032984 Numbers with the property that all pairs of consecutive base-7 digits differ by more than 2. 1
1, 2, 3, 4, 5, 6, 11, 12, 13, 19, 20, 21, 27, 28, 29, 35, 36, 37, 42, 43, 44, 45, 77, 78, 84, 85, 86, 91, 92, 93, 94, 133, 134, 135, 140, 141, 142, 143, 150, 151, 152, 153, 189, 190, 191, 192, 199, 200, 201, 202, 207, 208, 209, 248, 249 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

MATHEMATICA

Select[Range[300], Min[Abs[Differences[IntegerDigits[#, 7]]]]>2&] (* Harvey P. Dale, Mar 17 2016 *)

CROSSREFS

Cf. A007093.

Sequence in context: A057436 A108376 A108392 * A108379 A348256 A082657

Adjacent sequences:  A032981 A032982 A032983 * A032985 A032986 A032987

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified August 16 17:52 EDT 2022. Contains 356169 sequences. (Running on oeis4.)