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#17 by Charles R Greathouse IV at Sat Jun 17 04:38:08 EDT 2017
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#16 by Charles R Greathouse IV at Sat Jun 17 04:37:30 EDT 2017
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| LINKS
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<a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (3,-3,1).
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| FORMULA
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a(n) = a(n-1)+44*n-33 (With a(0)=0). [_). - _Vincenzo Librandi_, Dec 15 2010]
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| PROG
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(PARI) a(n)=11*n*(2*n-1) \\ Charles R Greathouse IV, Jun 17 2017
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| STATUS
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approved
editing
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#15 by Bruno Berselli at Mon Jun 09 08:17:54 EDT 2014
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#14 by Michel Marcus at Mon Jun 09 07:42:22 EDT 2014
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#13 by Michel Marcus at Mon Jun 09 07:42:19 EDT 2014
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| COMMENTS
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Sequence found by reading the line from 0, in the direction 0, 11,..., in the square spiral whose vertices are the generalized tridecagonal numbers A195313. - . - _Omar E. Pol, _, Sep 18 2011
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| FORMULA
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a(n) = a(n-1)+44*n-33 (With a(0)=0). [Vincenzo Librandi, Dec 15 2010]
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| PROG
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a(n)=a(n-1)+44*n-33 (With a(0)=0) [From Vincenzo Librandi, Dec 15 2010]
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| STATUS
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proposed
editing
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#12 by Ivan Panchenko at Mon Jun 09 07:03:04 EDT 2014
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#11 by Ivan Panchenko at Mon Jun 09 07:03:01 EDT 2014
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Ivan Panchenko, <a href="/A154617/b154617.txt">Table of n, a(n) for n = 0..1000</a>
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| STATUS
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approved
editing
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#10 by Russ Cox at Fri Mar 30 17:33:59 EDT 2012
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| AUTHOR
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_Omar E. Pol (info(AT)polprimos.com), _, Jan 13 2009
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Discussion
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| Fri Mar 30
| 17:33
| OEIS Server: https://oeis.org/edit/global/157
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#9 by R. J. Mathar at Tue Sep 27 13:11:58 EDT 2011
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#8 by R. J. Mathar at Tue Sep 27 13:11:54 EDT 2011
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