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A113317
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Exclusionary biquadrates (fourth powers).
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2
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16, 81, 256, 2401, 4096, 6561, 331776, 531441, 614656, 1048576, 3111696, 7311616, 7890481, 11316496, 12117361, 21051121, 62742241, 74805201, 1698181681, 4430766096, 6505390336, 11019960576, 11716114081, 479174066176
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| An exclusionary biquadrate m^4 is one sharing no digit in common with its root m made up of distinct digits. Is a subsequence of A113316. Conjectured to be complete.
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REFERENCES
| 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
| Sequence in context: A050463 A075578 A113316 * A187457 A056118 A134606
Adjacent sequences: A113314 A113315 A113316 * A113318 A113319 A113320
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KEYWORD
| base,nonn,fini
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AUTHOR
| Lekraj Beedassy (blekraj(AT)yahoo.com), Oct 26 2005
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EXTENSIONS
| Corrected by Don Reble, Nov 22 2006
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