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Search: id:A140679
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| 0, 17, 40, 69, 104, 145, 192, 245, 304, 369, 440, 517, 600, 689, 784, 885, 992, 1105, 1224, 1349, 1480, 1617, 1760, 1909, 2064, 2225, 2392, 2565, 2744, 2929, 3120, 3317, 3520, 3729, 3944, 4165, 4392, 4625, 4864, 5109, 5360, 5617
(list; graph; listen)
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OFFSET
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0,2
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FORMULA
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a(n)=3*n^2 + 14*n.
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MATHEMATICA
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a[n_]:=Sum[6*i+11, {i, 1, n}]; [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Dec 04 2008]
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CROSSREFS
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Cf. A033428, A045944, A140676, A067725, A140677, A140678, A067707, A140680, A140681, A140689.
Sequence in context: A156777 A070142 A070143 this_sequence A152817 A078553 A104043
Adjacent sequences: A140676 A140677 A140678 this_sequence A140680 A140681 A140682
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KEYWORD
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easy,nonn
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AUTHOR
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Omar E. Pol (info(AT)polprimos.com), May 22 2008
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