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A030704
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Numbers n such that the decimal expansion of 8^n contains no zeros (probably finite).
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25
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0, 1, 2, 3, 5, 6, 8, 9, 11, 12, 13, 17, 24, 27
(list;
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,3
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COMMENTS
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Integers in A007377 / 3. - M. F. Hasler, Mar 07 2014
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LINKS
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Table of n, a(n) for n=1..14.
Eric Weisstein's World of Mathematics, Zero
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MATHEMATICA
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Select[Range[0, 30], DigitCount[8^#, 10, 0]==0&] (* Harvey P. Dale, Jul 13 2016 *)
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PROG
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(PARI) select( is(n)=vecmin(digits(8^n)), [0..30]) \\ M. F. Hasler, Mar 07 2014
(MAGMA) [n: n in [0..500] | not 0 in Intseq(8^n)]; // Vincenzo Librandi, Mar 08 2014
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CROSSREFS
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Cf. A007377 (analog for 2^n), A030700 (for 3^n), A030701 (for 4^n), A008839 (for 5^n), A030702 (for 6^n), A030703 and A195908 (for 7^n), A030705 (for 9^n), A030706 and A195946 (for 11^n), A195944 and A195945 (for 13^n).
Cf. A195942, A195943.
This is row 0 of A305928.
Sequence in context: A224996 A246046 A026428 * A305928 A239013 A061054
Adjacent sequences: A030701 A030702 A030703 * A030705 A030706 A030707
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KEYWORD
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nonn,base,fini
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AUTHOR
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Eric W. Weisstein
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EXTENSIONS
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Several edits (offset 1, initial 0, title rephrased) by M. F. Hasler, Mar 07 2014
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STATUS
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approved
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