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 A102487 Numbers in base-12 representation that can be written with decimal digits. 10
 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 84, 85, 86 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Numbers that are only in this sequence or only in A039274 but not in both are n= 131, 142, 275, 286, 419, 430 etc: see A039558. [From R. J. Mathar, Aug 30 2008] LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 Eric Weisstein's World of Mathematics, Duodecimal Wikipedia, Duodecimal MATHEMATICA fQ[n_] := Last@ Union@ IntegerDigits[n, 12] < 10; Select[ Range[0, 86], fQ] (* Robert G. Wilson v, Apr 17 2012 *) PROG (PARI) {for(testn=0, 87, lgt=1; for(i=1, 1000, if(12^i > testn, lgt=i; break())); atst=testn; pasr=1; for(j=1, lgt, lasd=atst%12; if(lasd<10, atst=(atst-lasd)/12, pasr=0; break())); if(pasr==1, print1(testn, ", ")))} \\ Douglas Latimer, Apr 17 2012 (Haskell) import Data.List (unfoldr) a102487 n = a102487_list !! (n-1) a102487_list = filter (all (< 10) . unfoldr (\x ->    if x == 0 then Nothing else Just \$ swap \$ divMod x 12)) [0..] -- Reinhard Zumkeller, Apr 18 2011 (Python) A102487_list = [int(str(x), 12) for x in range(10**6)] # Chai Wah Wu, Apr 09 2016 CROSSREFS Complement of A102488; A102489, A102491, A102493. Cf. A033048 (subsequence). Sequence in context: A056167 A050759 A039274 * A102234 A174908 A082757 Adjacent sequences:  A102484 A102485 A102486 * A102488 A102489 A102490 KEYWORD nonn,base AUTHOR Reinhard Zumkeller, Jan 12 2005 STATUS approved

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Last modified March 28 07:59 EDT 2020. Contains 333079 sequences. (Running on oeis4.)