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A007511
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a(n) is the smallest number greater than a(n-1) that is expressible as the sum of two squares in more ways than a(n-1).
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3
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2, 50, 325, 1105, 5525, 27625, 71825, 138125, 160225, 801125, 2082925, 4005625, 5928325, 29641625, 77068225, 148208125, 243061325, 1215306625, 3159797225, 6076533125, 12882250225, 53716552825, 64411251125, 167469252925, 322056255625, 785817263725
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Sequence provides the locations of records in A025426 (nonzero squares), rather than in A000161 (definition of squares includes zeros). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 06 2007
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CROSSREFS
| Cf. A048610.
Sequence in context: A076267 A050800 A048610 * A016032 A080299 A083939
Adjacent sequences: A007508 A007509 A007510 * A007512 A007513 A007514
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KEYWORD
| nonn
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AUTHOR
| Gabriel Cunningham (gcasey(AT)mit.edu), Feb 29 2004
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EXTENSIONS
| a(12)-a(18) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Sep 03 2008
a(19)-a(24) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Jul 01 2009
a(25)-a(26) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Aug 30 2011
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