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A061966 Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 13 (most significant digit on right). 1
1, 3, 9, 15, 16, 33, 285, 867, 5683, 14205, 21075, 27120, 31403, 388601, 1037577, 1246064 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
This sequence differs from A029530 in that all least significant zeros are kept during concatenation.
No more terms < 10^7. [Lars Blomberg, Aug 15 2011]
LINKS
EXAMPLE
See A061955 for example.
MATHEMATICA
b = 13; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[Reverse[IntegerDigits[#, b]], c], b], #] &] (* Robert Price, Mar 09 2020 *)
CROSSREFS
Sequence in context: A090158 A030342 A273323 * A085328 A291347 A062220
KEYWORD
nonn,base,more
AUTHOR
Larry Reeves (larryr(AT)acm.org), May 24 2001
EXTENSIONS
Edited and updated by Larry Reeves (larryr(AT)acm.org), Apr 12 2002
a(15)-a(16) from Lars Blomberg, Aug 15 2011
STATUS
approved

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Last modified March 29 07:27 EDT 2024. Contains 371265 sequences. (Running on oeis4.)