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#28 by Peter Luschny at Sun Nov 12 05:33:18 EST 2023
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#27 by Amiram Eldar at Sun Nov 12 05:20:17 EST 2023
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#26 by Michel Marcus at Sun Nov 12 05:18:39 EST 2023
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#25 by Michel Marcus at Sun Nov 12 05:18:34 EST 2023
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| LINKS
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R. Reinhard Zumkeller, <a href="/A161700/a161700.txt">Enumerations of Divisors</a>
<a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (4, -,-6, ,4, -,-1).
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approved
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#24 by Charles R Greathouse IV at Thu Sep 08 08:45:45 EDT 2022
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| PROG
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(MAGMAMagma) [-n^3 + 7*n^2 - 5*n + 1: n in [0..40]]; // Vincenzo Librandi, Jul 17 2011
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Discussion
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| Thu Sep 08
| 08:45
| OEIS Server: https://oeis.org/edit/global/2944
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#23 by Michel Marcus at Mon Jul 17 02:27:28 EDT 2017
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#22 by Joerg Arndt at Mon Jul 17 02:15:28 EDT 2017
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#21 by Michel Marcus at Mon Jul 17 01:52:06 EDT 2017
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#20 by Michel Marcus at Mon Jul 17 01:51:57 EDT 2017
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| FORMULA
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a(0)=1, a(1)=2, a(2)=11, a(3)=22, a(n)=) = 4*a(n-1)-6*a(n-2)+4*a(n-3)-a(n-4). - _) with a(0)=1, a(1)=2, a(2)=11, a(3)=22. - _Harvey P. Dale_, Nov 12 2013
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proposed
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#19 by Jon E. Schoenfield at Mon Jul 17 00:23:00 EDT 2017
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