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Search: id:A020339
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| A020339 |
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p^2 is least square base n doublet (base n representation is juxtaposition of 2 identical strings).. |
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+0
8
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| 6, 2, 615, 84, 119973, 4, 3, 23620, 36363636364, 6, 24766945690, 17928148, 915, 4, 86808207405692007605, 6, 130, 10, 2667, 95530227420606, 10623969116570, 12, 5, 343872950627253606, 9, 14, 59239353339085, 8130
(list; graph; listen)
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OFFSET
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2,1
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REFERENCES
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David Wells, "The Penguin Dictionary of Curious and Interesting Numbers", Revised Edition 1997, p. 189.
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LINKS
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A. Ottens, The arithmetic-digits-squares-three.digits problem
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CROSSREFS
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Cf. A020340, A054214, A054215, A054216, A030465, A030466, A030467.
Sequence in context: A096039 A038256 A100251 this_sequence A100125 A102525 A119923
Adjacent sequences: A020336 A020337 A020338 this_sequence A020340 A020341 A020342
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KEYWORD
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base,nonn
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AUTHOR
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David W. Wilson (davidwwilson(AT)comcast.net)
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