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 A023800 Xenodromes: all digits in base 5 are different. 5
 0, 1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 27, 28, 29, 35, 38, 39, 40, 42, 44, 45, 47, 48, 51, 53, 54, 55, 58, 59, 65, 66, 69, 70, 71, 73, 76, 77, 79, 80, 82, 84, 85, 86, 89, 95, 96, 97, 101, 102, 103, 105, 107, 108, 110, 111, 113 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS Nathaniel Johnston, Table of n, a(n) for n = 1..261 (full sequence) MAPLE A023800 := proc(n) option remember: local d, j, k, inseq: if(n=1)then return 0:fi: for k from procname(n-1)+1 do d:=convert(k, base, 5): inseq:=true: for j from 0 to 4 do if(numboccur(d, j)>=2)then inseq:=false:break: fi: od: if(inseq)then return k: fi: od: end: seq(A023800(n), n=1..66); # Nathaniel Johnston, May 17 2011 MATHEMATICA Select[Range[0, 3000], Length[b5 = IntegerDigits[#, 5]] == Length[Union[b5]]&] (* Jean-François Alcover, Feb 13 2014 *) Select[Range[0, 120], Max[DigitCount[#, 5]]==1&] (* Harvey P. Dale, Sep 22 2016 *) CROSSREFS Cf. A023798 - A023810. Sequence in context: A037918 A043091 A031943 * A320340 A228869 A088725 Adjacent sequences:  A023797 A023798 A023799 * A023801 A023802 A023803 KEYWORD nonn,base,fini,full,easy AUTHOR STATUS approved

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Last modified March 22 10:07 EDT 2019. Contains 321421 sequences. (Running on oeis4.)