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Search: id:A113318
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| A113318 |
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Numbers whose biquadrates (fourth powers) are exclusionary. |
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+0
2
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| 2, 3, 4, 7, 8, 9, 24, 27, 28, 32, 42, 52, 53, 58, 59, 67, 89, 93, 203, 258, 284, 324, 329, 832, 843, 2673
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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The number m with no repeated digits has an exclusionary fourth power m^4 if the latter is made up of digits not appearing in m. Is a subsequence of A111116. Conjectured to be complete. For the corresponding exclusionary biquadrates m^4, see A113317.
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REFERENCES
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H. Ibstedt, Solution to Problem 2623, "Exclusionary Powers", pp. 346-9, Journal of Recreational Mathematics, Vol. 32 No.4 2003-4 Baywood NY.
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CROSSREFS
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Sequence in context: A059930 A125965 A111116 this_sequence A056033 A047547 A014456
Adjacent sequences: A113315 A113316 A113317 this_sequence A113319 A113320 A113321
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KEYWORD
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base,nonn,fini
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AUTHOR
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Lekraj Beedassy (blekraj(AT)yahoo.com), Oct 26 2005
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