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A068196
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Origin numbers: integers unreachable by Bergerson's Alpha construction (see the Ross Eckler link).
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0
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28, 108, 6902, 16068, 30662, 84662, 117157, 175844, 305804, 636268, 760436, 765402, 1343537, 1433493, 2125253, 3125825, 3255917, 4264947, 4796654, 10271188, 11911557, 12043892, 15344303, 27692262, 28112662, 28478708
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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REFERENCES
| R. K. Guy, Unsolved Problems in Number Theory, F31. Japanese edition, 1983. [The English edition is different.]
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LINKS
| A. Ross Eckler, Howard Bergerson [From Omar E. Pol (info(AT)polprimos.com), Sep 11 2010]
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CROSSREFS
| Sequence in context: A168254 A201469 A010016 * A044279 A044660 A183341
Adjacent sequences: A068193 A068194 A068195 * A068197 A068198 A068199
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KEYWORD
| nonn
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AUTHOR
| Naohiro Nomoto (n_nomoto(AT)yabumi.com), Mar 23 2002
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EXTENSIONS
| Edited with three more terms based on the Ross Eckler article by Omar E. Pol (info(AT)polprimos.com), Sep 11 2010
a(10)-a(26) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Oct 05 2010
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