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A066645
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a(n) = floor( (4/3)*Pi*n^3 ).
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7
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0, 4, 33, 113, 268, 523, 904, 1436, 2144, 3053, 4188, 5575, 7238, 9202, 11494, 14137, 17157, 20579, 24429, 28730, 33510, 38792, 44602, 50965, 57905, 65449, 73622, 82447, 91952, 102160, 113097, 124788, 137258, 150532, 164636, 179594, 195432
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OFFSET
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0,2
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COMMENTS
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Volume of a sphere of radius n, rounded down.
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LINKS
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FORMULA
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a(n) = floor((4/3)*Pi*n^3).
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MATHEMATICA
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Table[ Floor[(4/3)Pi*n^3], {n, 0, 50} ]
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PROG
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(PARI) { for (n=0, 1000, write("b066645.txt", n, " ", floor((4/3)*Pi*n^3)) ) } \\ Harry J. Smith, Mar 16 2010
(Maxima) A066645(n):=floor((4/3)*%pi*n^3)$
(Sage)
n=100 # change n for more values
[floor(4/3*pi*r^3) for r in [0..n]] # Tom Edgar, Oct 10 2013
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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