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#34 by Charles R Greathouse IV at Thu Sep 08 08:44:31 EDT 2022
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(MAGMAMagma) m:=30; R<x>:=PowerSeriesRing(Integers(), m); Coefficients(R!( (1+x)^2/((1-x-x^2)^3*(1-x)^2) )); // G. C. Greubel, Jan 31 2019
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Discussion
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| Thu Sep 08
| 08:44
| OEIS Server: https://oeis.org/edit/global/2944
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#33 by Harvey P. Dale at Sun Aug 29 19:02:36 EDT 2021
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#32 by Harvey P. Dale at Sun Aug 29 19:02:32 EDT 2021
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LinearRecurrence[{5, -7, -2, 10, -2, -5, 1, 1}, {1, 7, 29, 94, 263, 667, 1577, 3538}, 30] (* Harvey P. Dale, Aug 29 2021 *)
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approved
editing
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#31 by Susanna Cuyler at Thu Jan 31 19:37:35 EST 2019
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#30 by G. C. Greubel at Thu Jan 31 14:11:52 EST 2019
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#29 by G. C. Greubel at Thu Jan 31 14:11:29 EST 2019
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G.f.: (1+x)^2/(/((1-x-x^2)^3/(*(1-x)^2.).
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| MATHEMATICA
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CoefficientList[(1+x)^2/(/((1-x-x^2)^3/(*(1-x)^2 + ) + O[x]^30, x] (* Jean-François Alcover, Jul 31 2018 *)
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(PARI) x='x+O('x^9930); Vec((1+x)^2/(/((1-x-x^2)^3/(*(1-x)^2) \\ _)) \\ _Altug Alkan_, Jul 31 2018
(MAGMA) m:=30; R<x>:=PowerSeriesRing(Integers(), m); Coefficients(R!( (1+x)^2/((1-x-x^2)^3*(1-x)^2) )); // G. C. Greubel, Jan 31 2019
(Sage) ((1+x)^2/((1-x-x^2)^3*(1-x)^2)).series(x, 30).coefficients(x, sparse=False) # G. C. Greubel, Jan 31 2019
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| AUTHOR
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_N. J. A. Sloane_._
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approved
editing
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#28 by Bruno Berselli at Tue Jul 31 09:56:56 EDT 2018
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#27 by Altug Alkan at Tue Jul 31 09:44:22 EDT 2018
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#26 by Altug Alkan at Tue Jul 31 09:43:57 EDT 2018
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(PARI) x='x+O('x^99); Vec((1+x)^2/(1-x-x^2)^3/(1-x)^2) \\ Altug Alkan, Jul 31 2018
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proposed
editing
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#25 by Jean-François Alcover at Tue Jul 31 09:10:03 EDT 2018
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