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Search: id:A132757
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| 0, 15, 31, 48, 66, 85, 105, 126, 148, 171, 195, 220, 246, 273, 301, 330, 360, 391, 423, 456, 490, 525, 561, 598, 636, 675, 715, 756, 798, 841, 885, 930, 976, 1023, 1071, 1120, 1170, 1221, 1273, 1326, 1380, 1435, 1491, 1548, 1606, 1665
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OFFSET
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0,2
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FORMULA
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a(n) = n*(n+29)/2.
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MATHEMATICA
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i=-14; s=0; lst={}; Do[s+=n+i; If[s>=0, AppendTo[lst, s]], {n, 0, 6!, 1}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Oct 29 2008]
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CROSSREFS
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Cf. A000217, A056126.
Sequence in context: A044076 A125169 A044457 this_sequence A045135 A102955 A041444
Adjacent sequences: A132754 A132755 A132756 this_sequence A132758 A132759 A132760
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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), Aug 28 2007
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