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A061943 Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 14 (most significant digit on right). 1
1, 2, 6, 7, 10, 13, 39, 45, 65, 131, 195, 1690, 2005, 2106, 3211, 11615, 18498, 20881, 22360, 36335, 104858, 234506, 665223, 1274944, 1328487, 1425268, 2305498 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
This sequence differs from A029507 in that all least significant zeros are removed before concatenation.
No more terms < 10^7. - Lars Blomberg, Oct 22 2011
LINKS
EXAMPLE
See A061931 for example.
MATHEMATICA
b = 14; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[c, IntegerDigits[IntegerReverse[#, b], b]], b], #] &] (* Robert Price, Mar 08 2020 *)
PROG
(PARI) lista(nn, m=14) = my(s, t); for(k=1, nn, s=k/m^valuation(k, m); while(s, t=t*m+s%m; s\=m); if(t%k==0, print1(k, ", "))); \\ Jinyuan Wang, Dec 05 2020
CROSSREFS
Sequence in context: A029459 A014862 A180626 * A029507 A047552 A287453
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(23)-a(27) from Lars Blomberg, Oct 22 2011
STATUS
approved

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Last modified March 28 17:42 EDT 2024. Contains 371254 sequences. (Running on oeis4.)