The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A040309

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A040309

Continued fraction for sqrt(328).
(history; published version)

#18 by Joerg Arndt at Wed Dec 27 00:01:48 EST 2023

STATUS

editing

approved

#17 by Paolo P. Lava at Tue Dec 26 11:54:50 EST 2023

FORMULA

a(n)=(1/2)*[45+27(-1)^n]-18*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, Apr 27 2009]

STATUS

approved

editing

#16 by Harvey P. Dale at Sat Aug 24 10:27:25 EDT 2019

STATUS

editing

approved

#15 by Harvey P. Dale at Sat Aug 24 10:27:23 EDT 2019

MATHEMATICA

Block[{$MaxExtraPrecision=1000}, ContinuedFraction[Sqrt[328], 100]] (* or *) PadRight[{18}, 120, 100, {36, 9}] (* Harvey P. Dale, Aug 24 2019 *)

STATUS

approved

editing

#14 by Harvey P. Dale at Sat Aug 24 10:26:54 EDT 2019

STATUS

editing

approved

#13 by Harvey P. Dale at Sat Aug 24 10:26:51 EDT 2019

MATHEMATICA

Block[{$MaxExtraPrecision=1000}, ContinuedFraction[Sqrt[328], 100]] (* or *) PadRight[{18}, 120, {36, 9}] (* Harvey P. Dale, Aug 24 2019 *)

STATUS

approved

editing

#12 by Ray Chandler at Fri Mar 10 09:27:56 EST 2017

STATUS

editing

approved

#11 by Ray Chandler at Fri Mar 10 09:27:54 EST 2017

LINKS

<a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (0, 1).

STATUS

approved

editing

#10 by Russ Cox at Fri Mar 30 18:53:22 EDT 2012

FORMULA

a(n)=(1/2)*[45+27(-1)^n]-18*[C(2*n,n) mod 2], with n>=0 [From _Paolo P. Lava (paoloplava(AT)gmail.com), _, Apr 27 2009]

Discussion

Fri Mar 30

18:53

OEIS Server: https://oeis.org/edit/global/262

#9 by Russ Cox at Fri Mar 30 16:47:56 EDT 2012

AUTHOR

_N. J. A. Sloane (njas(AT)research.att.com)_.

Discussion

Fri Mar 30

16:47

OEIS Server: https://oeis.org/edit/global/110