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A163277
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a(n) = n^7*(n+1)^2/2.
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5
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0, 2, 576, 17496, 204800, 1406250, 6858432, 26353376, 84934656, 239148450, 605000000, 1403076312, 3027787776, 6149354666, 11859019200, 21870000000, 38788923392, 66474865026, 110505715776, 178774347800, 282240000000
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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FORMULA
| a(n)=n^2*A163275(n). G.f.: 2*x*(1+278*x+5913*x^2+27760*x^3+38435*x^4+16434*x^5+1867*x^6+32*x^7)/(x-1)^10. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 05 2010]
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MAPLE
| A163277 := proc(n) n^7*(n+1)^2/2 ; end proc: seq(A163277(n), n=0..60) ; [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 05 2010]
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CROSSREFS
| Cf. A006002, A099903, A163102, A163274, A163275, A163276.
Sequence in context: A049364 A159529 A195001 * A003830 A134371 A129697
Adjacent sequences: A163274 A163275 A163276 * A163278 A163279 A163280
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KEYWORD
| easy,nonn
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AUTHOR
| Omar E. Pol (info(AT)polprimos.com), Jul 24 2009
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EXTENSIONS
| Extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 05 2010
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