The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A042884 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A042884

Numerators of continued fraction convergents to sqrt(974).
(history; published version)

#16 by Ray Chandler at Tue Jul 18 16:24:03 EDT 2023

STATUS

editing

approved

#15 by Ray Chandler at Tue Jul 18 16:23:59 EDT 2023

LINKS

<a href="/index/Rec#order_64">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 977651490470430, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).

STATUS

approved

editing

#14 by Jon E. Schoenfield at Sun Jun 26 23:47:19 EDT 2022

STATUS

editing

approved

#13 by Jon E. Schoenfield at Sun Jun 26 23:47:18 EDT 2022

FORMULA

a(n) = 977651490470430*a(n-32) - a(n-64) for n > 63. [Bruno Berselli, Dec 08 2013]

AUTHOR

N. J. A. Sloane.

STATUS

approved

editing

#12 by Michel Marcus at Sun Dec 08 13:31:20 EST 2013

STATUS

reviewed

approved

#11 by Bruno Berselli at Sun Dec 08 13:18:17 EST 2013

STATUS

proposed

reviewed

#10 by Bruno Berselli at Sun Dec 08 13:18:08 EST 2013

STATUS

editing

proposed

#9 by Bruno Berselli at Sun Dec 08 13:18:02 EST 2013

FORMULA

a(n) = 977651490470430*a(n-32) - a(n-64) for n>63. [Bruno Berselli, Dec 08 2013]

STATUS

proposed

editing

#8 by Vincenzo Librandi at Sun Dec 08 13:00:33 EST 2013

STATUS

editing

proposed

#7 by Vincenzo Librandi at Sun Dec 08 12:59:57 EST 2013

LINKS

Vincenzo Librandi, <a href="/A042884/b042884.txt">Table of n, a(n) for n = 0..200</a>

MATHEMATICA

Numerator[Convergents[Sqrt[974], 30]] (* Harvey P. Dale, Jun 25 2013 *)

KEYWORD

nonn,cofr,frac,easy

STATUS

approved

editing