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A075726
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a(n) = Pi * n^2 rounded off.
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2
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0, 3, 13, 28, 50, 79, 113, 154, 201, 254, 314, 380, 452, 531, 616, 707, 804, 908, 1018, 1134, 1257, 1385, 1521, 1662, 1810, 1963, 2124, 2290, 2463, 2642, 2827, 3019, 3217, 3421, 3632, 3848, 4072, 4301, 4536, 4778, 5027
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OFFSET
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0,2
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COMMENTS
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If only integers are allowed in computations, a(n) gives the sequence of areas of circles in order of increasing radii.
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LINKS
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MATHEMATICA
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Round[Table[Pi * n^2, {n, 0, 40}]]
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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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STATUS
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approved
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