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Search: id:A000603
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| A000603 |
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Number of nonnegative solutions to x^2 + y^2 <= n^2.
(Formerly M2541 N1004)
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+0
4
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| 1, 3, 6, 11, 17, 26, 35, 45, 58, 73, 90, 106, 123, 146, 168, 193, 216, 243, 271, 302, 335, 365, 402, 437, 473, 516, 557, 600, 642, 687, 736, 782, 835, 886, 941, 999, 1050, 1111, 1167, 1234, 1297, 1357, 1424, 1491, 1564, 1636, 1703, 1778, 1852, 1931, 2012, 2095
(list; graph; listen)
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OFFSET
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0,2
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
H. Gupta, A Table of Values of N_3(t), Proc. National Institute of Sciences of India, 13 (1947), 35-63.
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LINKS
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T. D. Noe, Table of n, a(n) for n=0..1000
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CROSSREFS
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Sequence in context: A022338 A119639 A107957 this_sequence A003453 A011901 A109471
Adjacent sequences: A000600 A000601 A000602 this_sequence A000604 A000605 A000606
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
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More terms from David W. Wilson (davidwwilson(AT)comcast.net), May 22, 2000
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