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A008839
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Numbers n such that the decimal expansion of 5^n contains no zeros.
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31
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0, 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 17, 18, 30, 33, 58
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OFFSET
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1,3
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COMMENTS
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Probably 58 is last term.
Searched for n up to 10^10. - David Radcliffe, Dec 27 2015
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LINKS
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Table of n, a(n) for n=1..16.
M. F. Hasler, Zeroless powers, OEIS Wiki, Mar 07 2014
W. Schneider, NoZeros: Powers n^k without Digit Zero [Cached copy]
Eric Weisstein's World of Mathematics, Zero.
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MATHEMATICA
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Do[ If[ Union[ RealDigits[ 5^n ][[1]]] [[1]] != 0, Print[ n ]], {n, 0, 25000}]
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PROG
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(MAGMA) [ n: n in [0..500] | not 0 in Intseq(5^n) ]; // Vincenzo Librandi Oct 19 2012
(PARI) for(n=0, 99, vecmin(digits(5^n))&& print1(n", ")) \\ M. F. Hasler, Mar 07 2014
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CROSSREFS
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For the zeroless numbers (powers x^n), see A238938, A238939, A238940, A195948, A238936, A195908, A195946, A195945, A195942, A195943, A103662.
For the corresponding exponents, see A007377, A008839, A030700, A030701, A008839, A030702, A030703, A030704, A030705, A030706, A195944.
For other related sequences, see A305925, A052382, A027870, A102483, A103663.
Sequence in context: A117729 A073726 A194125 * A305925 A039226 A277882
Adjacent sequences: A008836 A008837 A008838 * A008840 A008841 A008842
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KEYWORD
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nonn,base,fini
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AUTHOR
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Olivier Gérard
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EXTENSIONS
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Definition corrected and initial term 0 added by M. F. Hasler, Sep 25 2011
Further edits by M. F. Hasler, Mar 08 2014
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STATUS
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approved
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