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1, 4, -39, -604, -3471, -12500, -31031, -39524, 128481, 1421684, 8765625, 47056564, 241154641, 1215876316, 6095986089, 30506187500, 152571113409, 762915315556, 3814663253401, 19073439282244, 95367367640625
(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..300
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FORMULA
| a(0)=1, a(1)=4, a(2)=-39, a(3)=-604, a(4)=-3471, a(5)=-12500, a(6)=-31031, a(7)=-39524, a(n)=12*a(n-1)-56*a(n-2)+140*a(n-3)- 210*a(n-4)+ 196*a(n-5)-112*a(n-6)+36*a(n-7)-5*a(n-8) [From Harvey P. Dale, Jul 21 2011]
G.f.: (1-8*x-31*x^2-52*x^3+1243*x^4+1432*x^5+291*x^6+4*x^7)/((1-5*x)*(1-x)^7) - Bruno Berselli, Jul 21 2011
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MATHEMATICA
| Table[5^n-n^6, {n, 0, 60}] (*From Vladimir Joseph Stephan Orlovsky, Feb 15 2011*)
LinearRecurrence[{12, -56, 140, -210, 196, -112, 36, -5}, {1, 4, -39, -604, -3471, -12500, -31031, -39524}, 61] (* From Harvey P. Dale, Jul 21 2011 *)
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PROG
| (MAGMA) [5^n-n^6: n in [0..30]]; // Vincenzo Librandi, Jul 03 2011
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CROSSREFS
| Sequence in context: A068187 A177775 A192935 * A189489 A178920 A066399
Adjacent sequences: A024052 A024053 A024054 * A024056 A024057 A024058
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KEYWORD
| sign,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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