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A125082
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a(n) = n^4-n^3-n^2-n-1.
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2
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-1, -3, 1, 41, 171, 469, 1037, 2001, 3511, 5741, 8889, 13177, 18851, 26181, 35461, 47009, 61167, 78301, 98801, 123081, 151579, 184757, 223101, 267121, 317351, 374349, 438697, 511001, 591891, 682021, 782069, 892737, 1014751, 1148861, 1295841, 1456489, 1631627, 1822101, 2028781, 2252561, 2494359
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..660
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FORMULA
| O.g.f.: -60/(-1+x)^3-66/(-1+x)^4-1/(-1+x)-24/(-1+x)^5-20/(-1+x)^2 . - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 26 2008
a(0)=-1, a(1)=-3, a(2)=1, a(3)=41, a(4)=171, a(n)=5*a(n-1)- 10*a(n-2)+ 10*a(n-3)-5*a(n-4)+a(n-5) [From Harvey P. Dale, Dec 30 2011]
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MATHEMATICA
| Table[n^4 - n^3 - n^2 - n - 1, {n, 0, 41}]
LinearRecurrence[{5, -10, 10, -5, 1}, {-1, -3, 1, 41, 171}, 40] (* From Harvey P. Dale, Dec 30 2011 *)
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PROG
| (MAGMA) [n^4-n^3-n^2-n-1: n in [0..60]]; // Vincenzo Librandi, Apr 26 2011
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CROSSREFS
| Cf. A083074.
Sequence in context: A109842 A103242 A050817 * A136517 A104097 A155812
Adjacent sequences: A125079 A125080 A125081 * A125083 A125084 A125085
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KEYWORD
| sign
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AUTHOR
| Artur Jasinski (grafix(AT)csl.pl), Nov 19 2006
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