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A195944
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Numbers k such that 13^k has no zero in its decimal expansion.
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21
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OFFSET
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1,3
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COMMENTS
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Probably finite. Is 14 the largest term?
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LINKS
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FORMULA
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MATHEMATICA
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Select[Range[0, 20], DigitCount[13^#, 10, 0]==0&] (* Harvey P. Dale, May 24 2023 *)
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PROG
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(PARI) for( n=0, 9999, is_A052382(13^n) && print1(n", "))
(Magma) [n: n in [0..1000] | not 0 in Intseq(13^n) ]; // Vincenzo Librandi, May 06 2015
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CROSSREFS
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Cf. A195942, A195943, A195945, A195946, A195908, A195948, A052382, A007377, A008839, A030700, A030701, A030702, A030704, A030705, A030706.
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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Keyword:fini removed by Jianing Song, Jan 28 2023 as finiteness is only conjectured.
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STATUS
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approved
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