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Search: id:A000606
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| A000606 |
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Number of nonnegative solutions to x^2 + y^2 + z^2 <= n.
(Formerly M3294 N1329)
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+0
3
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| 1, 4, 7, 8, 11, 17, 20, 20, 23, 29, 35, 38, 39, 45, 51, 51, 54, 63, 69, 72, 78, 84, 87, 87, 90, 99, 111, 115, 115, 127, 133, 133, 136, 142, 151, 157, 163, 169, 178, 178, 184, 199
(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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Cf. A000604.
First differences are in A002102.
Sequence in context: A047347 A137362 A024621 this_sequence A061932 A060833 A162967
Adjacent sequences: A000603 A000604 A000605 this_sequence A000607 A000608 A000609
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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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