The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A015535

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A015535

Expansion of x/(1 - 5*x - 2*x^2).
(history; published version)

#53 by Joerg Arndt at Mon Dec 18 12:18:23 EST 2023

STATUS

editing

approved

#52 by Joerg Arndt at Mon Dec 18 12:18:21 EST 2023

MATHEMATICA

Join[{a=0, b=1}, Table[c=5*b+2*a; a=b; b=c, {n, 100}]] (* Vladimir Joseph Stephan Orlovsky, Jan 16 2011 *)

STATUS

approved

editing

#51 by Michael De Vlieger at Mon Dec 18 12:17:42 EST 2023

STATUS

proposed

approved

#50 by Paolo P. Lava at Mon Dec 18 09:21:55 EST 2023

STATUS

editing

proposed

Discussion

Mon Dec 18

12:17

Joerg Arndt: but this one is fine?

#49 by Paolo P. Lava at Mon Dec 18 09:21:52 EST 2023

FORMULA

a(n) = (1/33)*sqrt(33)*((5/2 + (1/2)*sqrt(33))^n - (5/2 - (1/2)*sqrt(33))^n). - Paolo P. Lava, Jan 13 2009

STATUS

approved

editing

#48 by Charles R Greathouse IV at Thu Sep 08 08:44:40 EDT 2022

PROG

(MAGMAMagma) [n le 2 select n-1 else 5*Self(n-1)+2*Self(n-2): n in [1..30]]; // Vincenzo Librandi, Nov 12 2012

Discussion

Thu Sep 08

08:44

OEIS Server: https://oeis.org/edit/global/2944

#47 by N. J. A. Sloane at Sat Dec 07 12:18:19 EST 2019

PROG

(Sage) [lucas_number1(n, 5, -2) for n in xrangerange(0, 22)] # Zerinvary Lajos, Apr 24 2009

Discussion

Sat Dec 07

12:18

OEIS Server: https://oeis.org/edit/global/2837

#46 by Susanna Cuyler at Sun Jul 15 22:02:26 EDT 2018

STATUS

reviewed

approved

#45 by Michel Marcus at Sun Jul 15 13:20:31 EDT 2018

STATUS

proposed

reviewed

#44 by Jon E. Schoenfield at Sun Jul 15 12:59:02 EDT 2018

STATUS

editing

proposed