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 A061947 Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 18 (most significant digit on right). 1
 1, 2, 3, 6, 9, 17, 47, 61, 69, 137, 323, 385, 674, 731, 884, 1245, 1253, 17204, 35580, 37282, 73270, 74919, 78625, 98413, 119017, 263197, 313732, 402321, 467738, 661300, 4757138, 8445220, 9481937 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS This sequence differs from A029511 in that all least significant zeros are removed before concatenation. No more terms < 10^7. [Lars Blomberg, Oct 23 2011] LINKS EXAMPLE See A061931 for example. MATHEMATICA b = 18; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[c, IntegerDigits[IntegerReverse[#, b], b]], b], #] &] (* Robert Price, Mar 08 2020 *) CROSSREFS Cf. A029447-A029470, A029471-A029494, A029495-A029518, A029519-A029542, A061931-A061954, A061955-A061978. Sequence in context: A129853 A095982 A095090 * A018251 A218339 A329248 Adjacent sequences:  A061944 A061945 A061946 * A061948 A061949 A061950 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(29)-a(33) from Lars Blomberg, Oct 23 2011 STATUS approved

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Last modified April 8 21:44 EDT 2020. Contains 333329 sequences. (Running on oeis4.)