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A033078 Numbers n with property that all pairs of consecutive base 7 digits differ by 3. 0
1, 2, 3, 4, 5, 6, 11, 19, 21, 27, 29, 37, 45, 78, 135, 150, 192, 207, 264, 315, 321, 550, 950, 1050, 1056, 1344, 1350, 1450, 1850, 2208, 2250, 3851, 6652, 7353, 7395, 9411, 9453, 10154, 12955, 15456, 15462, 15750, 15756, 26961 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

MATHEMATICA

Join[Range[6], Select[Range[27000], Union[Abs[Differences[IntegerDigits[#, 7]]]] =={3}&]]  (* From Harvey P. Dale, Apr 21 2011 *)

CROSSREFS

Sequence in context: A157420 A058243 A060733 * A118598 A113006 A113323

Adjacent sequences:  A033075 A033076 A033077 * A033079 A033080 A033081

KEYWORD

nonn,base

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified February 17 17:51 EST 2012. Contains 206061 sequences.