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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; refs; listen; history; internal format)
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OFFSET
| 0,2
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FORMULA
| a(n) = n*(n + 13).
2*n+a(n-1)+12 (with a(0)=0) [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Aug 03 2010]
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EXAMPLE
| a(1)=2*1+0+12=14; a(2)=2*2+14+12=30; a(3)=2*3+30+12=48 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Aug 03 2010]
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MATHEMATICA
| 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
| Cf. A002378, A120071.
Sequence in context: A055039 A044075 A044456 * A011257 A083540 A027575
Adjacent sequences: A132756 A132757 A132758 * A132760 A132761 A132762
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KEYWORD
| easy,nonn
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AUTHOR
| Omar E. Pol (info(AT)polprimos.com), Aug 28 2007
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