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A031008 Position of n-th 0 in A031007. 0
0, 7, 21, 35, 49, 63, 77, 91, 92, 95, 98, 101, 104, 107, 110, 112, 133, 154, 175, 196, 217, 238, 239, 242, 245, 248, 251, 254, 257, 259, 280, 301, 322, 343, 364, 385, 386, 389, 392, 395, 398, 401, 404, 406, 427, 448, 469, 490, 511 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..49.

MATHEMATICA

Rest[Flatten[Position[Flatten[Table[Reverse[IntegerDigits[n, 7]], {n, 0, 200}]], 0]]]-1 (* Harvey P. Dale, Jun 08 2017 *)

CROSSREFS

Sequence in context: A282248 A282349 A045849 * A147587 A208543 A009475

Adjacent sequences:  A031005 A031006 A031007 * A031009 A031010 A031011

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

EXTENSIONS

Missing a(1)=0 inserted by Sean A. Irvine, Apr 10 2020

STATUS

approved

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Last modified October 20 09:49 EDT 2020. Contains 337900 sequences. (Running on oeis4.)