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URL: https://oeis.org/history?seq=A047808

⇱ The On-Line Encyclopedia of Integer Sequences (OEIS)

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a(n) counts different values of i^2 + j^2 <= n^2 or number of distances from the origin to all integer points inside a circle of radius n.
#16 by Charles R Greathouse IV at Sun Aug 28 18:23:39 EDT 2016
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Sun Aug 28
18:23
OEIS Server: https://oeis.org/edit/global/2561
#15 by N. J. A. Sloane at Sat Dec 06 01:33:20 EST 2014
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#14 by Michel Marcus at Fri Dec 05 23:59:14 EST 2014
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#13 by Jon E. Schoenfield at Fri Dec 05 23:01:04 EST 2014
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#12 by Jon E. Schoenfield at Fri Dec 05 23:01:01 EST 2014
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#11 by Russ Cox at Sat Mar 31 20:30:55 EDT 2012
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Sat Mar 31
20:30
OEIS Server: https://oeis.org/edit/global/1113
#10 by Russ Cox at Fri Mar 30 18:35:38 EDT 2012
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Fri Mar 30
18:35
OEIS Server: https://oeis.org/edit/global/202
#9 by N. J. A. Sloane at Thu Nov 11 07:34:06 EST 2010
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#8 by N. J. A. Sloane at Fri Feb 27 03:00:00 EST 2009
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#7 by N. J. A. Sloane at Fri Jan 12 03:00:00 EST 2007
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