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A029452 Numbers k that divide the (right) concatenation of all numbers <= k written in base 7 (most significant digit on left). 1
1, 3, 7, 12, 21, 28, 44, 49, 60, 61, 63, 81, 84, 91, 97, 108, 140, 147, 180, 189, 196, 204, 212, 243, 252, 303, 308, 324, 343, 349, 376, 392, 441, 504, 831, 1029, 1057, 1176, 1561, 2401, 2744, 3101, 4312, 5096, 6027, 7203, 8232, 10339, 11669, 12936, 13755 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
MATHEMATICA
b = 7; c = {}; Select[Range[10^5], Divisible[FromDigits[c = Join[c, IntegerDigits[#, b]], b], #] &] (* Robert Price, Mar 11 2020 *)
CROSSREFS
Sequence in context: A025582 A247556 A337656 * A367892 A365043 A294422
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
More terms from David W. Wilson
STATUS
approved

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Last modified March 29 00:26 EDT 2024. Contains 371264 sequences. (Running on oeis4.)