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A118587
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Expansion of (17-25*x-23*x^2+133*x^3)/(1-x)^4.
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0
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17, 43, 47, 131, 397, 947, 1883, 3307, 5321, 8027, 11527, 15923, 21317, 27811, 35507, 44507, 54913, 66827, 80351, 95587, 112637, 131603, 152587, 175691, 201017, 228667, 258743, 291347, 326581, 364547, 405347, 449083, 495857, 545771, 598927
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OFFSET
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0,1
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COMMENTS
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The old name was "A nested recursion from a cubic prime generating polynomial so that only the ending coefficients are necessary to determine the recursion: f[x_] = 17*x^3 - 62*x^2 + 71*x + 17."
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LINKS
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FORMULA
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a(n) = 17*n^3 - 62*n^2 + 71*n + 17.
G.f.: (17 - 25*x - 23*x^2 + 133*x^3)/(1-x)^4. - Colin Barker, Mar 11 2013
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MATHEMATICA
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LinearRecurrence[{4, -6, 4, -1}, {17, 43, 47, 131}, 40] (* Harvey P. Dale, Mar 24 2016 *)
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CROSSREFS
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KEYWORD
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nonn,less,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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