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Search: id:A132759
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| 0, 14, 30, 48, 68, 90, 114, 140, 168, 198, 230, 264, 300, 338, 378, 420, 464, 510, 558, 608, 660, 714, 770, 828, 888, 950, 1014, 1080, 1148, 1218, 1290, 1364, 1440, 1518, 1598, 1680, 1764, 1850, 1938, 2028, 2120, 2214, 2310, 2408
(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) = n*(n + 13).
2*n+a(n-1)+10 (with a(1)=0) [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 08 2009]
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EXAMPLE
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For n=2, a(2)=2*2+0+10=14; n=3, a(3)=2*3+14+10=30; n=4, a(4)=2*4+30+10=48 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 08 2009]
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MATHEMATICA
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s=0; lst={s}; Do[s+=n++ +14; AppendTo[lst, s], {n, 0, 7!, 2}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Nov 19 2008]
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CROSSREFS
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Cf. A002378, A120071.
Sequence in context: A055039 A044075 A044456 this_sequence A011257 A083540 A027575
Adjacent sequences: A132756 A132757 A132758 this_sequence A132760 A132761 A132762
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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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