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Search: id:A020340
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| A020340 |
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Least square base n doublet (written in base 10). |
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+0
11
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| 36, 4, 378225, 7056, 14393520729, 16, 9, 557904400, 1322314049613223140496, 36, 613401598811409576100, 321418490709904, 837225, 16, 7535664872989640713426833504575377836025, 36, 16900, 100, 7112889
(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. A020339, A054214, A054215, A054216, A030465, A030466, A030467.
Adjacent sequences: A020337 A020338 A020339 this_sequence A020341 A020342 A020343
Sequence in context: A022071 A037935 A100252 this_sequence A109256 A066583 A073405
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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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