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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 Cf. A029447-A029470, A029471-A029494, A029495-A029518, A029519-A029542, A061931-A061954, A061955-A061978. Sequence in context: A029459 A014862 A180626 * A029507 A047552 A287453 Adjacent sequences: A061940 A061941 A061942 * A061944 A061945 A061946 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 January 31 18:34 EST 2023. Contains 359980 sequences. (Running on oeis4.)