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A032861 Numbers n such that base 6 representation Sum{d(i)*6^i: i=0,1,...,m) has d(m)>d(m-1)<d(m-2)>... 2
1, 2, 3, 4, 5, 6, 12, 13, 18, 19, 20, 24, 25, 26, 27, 30, 31, 32, 33, 34, 37, 38, 39, 40, 41, 73, 74, 75, 76, 77, 80, 81, 82, 83, 109, 110, 111, 112, 113, 116, 117, 118, 119, 123, 124, 125, 145, 146, 147, 148, 149, 152, 153, 154, 155 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..55.

MATHEMATICA

sdQ[n_]:=Module[{s=Sign[Differences[IntegerDigits[n, 6]]]}, s==PadRight[{}, Length[ s], {-1, 1}]]; Select[Range[200], sdQ] (* Harvey P. Dale, Dec 15 2017 *)

CROSSREFS

Sequence in context: A113006 A113323 A108377 * A032885 A023788 A032989

Adjacent sequences:  A032858 A032859 A032860 * A032862 A032863 A032864

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified May 25 19:58 EDT 2019. Contains 323576 sequences. (Running on oeis4.)