[go: up one dir, main page]

login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
Revision History for A077250 (Underlined text is an addition; strikethrough text is a deletion.)

Showing entries 1-10 | older changes
A077250 Bisection (odd part) of Chebyshev sequence with Diophantine property.
(history; published version)
#22 by Charles R Greathouse IV at Fri Jun 19 11:19:41 EDT 2015
LINKS

<a href="/index/Rec#order_02">Index to sequencesentries withfor linear recurrences with constant coefficients</a>, signature (10,-1).

Discussion
Fri Jun 19 11:19
OEIS Server: https://oeis.org/edit/global/2446
#21 by Alois P. Heinz at Mon Jun 15 14:27:19 EDT 2015
STATUS

proposed

approved

#20 by Colin Barker at Mon Jun 15 13:50:16 EDT 2015
STATUS

editing

proposed

#19 by Colin Barker at Mon Jun 15 13:50:05 EDT 2015
COMMENTS

a(n)^2 - 24*b(n)^2 = 25, with the companion sequence b(n)= ) = A077249(n).

FORMULA

a(n)= ) = 10*a(n-1)- a(n-2), a(-1) := )=7, a(0)=11.

a(n)= ) = 2*T(n+1, 5)+T(n, 5), with T(n, x) Chebyshev's polynomials of the first kind, A053120. T(n, 5)= A001079(n).

a(n)= ) = sqrt(25 + 24*A077249(n)^2).

#18 by Colin Barker at Mon Jun 15 13:40:46 EDT 2015
LINKS

<Colin Barker, <a href="/indexA077250/Recb077250.txt">IndexTable entriesof n, a(n) for linear recurrences with constant coefficientsn = 0..1000</a>, signature (10,-1).>

<a href="/index/Rec#order_02">Index to sequences with linear recurrences with constant coefficients</a>, signature (10,-1).

PROG

(PARI) Vec((11-7*x)/(1-10*x+x^2) + O(x^30)) \\ Colin Barker, Jun 15 2015

STATUS

approved

editing

#17 by Charles R Greathouse IV at Sat Jun 13 00:50:47 EDT 2015
LINKS

<a href="/index/Rec">Index to sequencesentries withfor linear recurrences with constant coefficients</a>, signature (10,-1).

Discussion
Sat Jun 13 00:50
OEIS Server: https://oeis.org/edit/global/2439
#16 by Charles R Greathouse IV at Fri Jun 12 15:25:14 EDT 2015
LINKS

<a href="/index/Rea#recLCCRec">Index to sequences with linear recurrences with constant coefficients</a>, signature (10,-1).

Discussion
Fri Jun 12 15:25
OEIS Server: https://oeis.org/edit/global/2436
#15 by Charles R Greathouse IV at Thu Nov 21 13:07:13 EST 2013
MATHEMATICA

CoefficientList[Series[(11 - 7 z)/(z^2 - 10 z + 1), {z, 0, 200}], z] (* From ] (* _Vladimir Joseph Stephan Orlovsky, _, Jun 11 2011 *)

Discussion
Thu Nov 21 13:07
OEIS Server: https://oeis.org/edit/global/2063
#14 by Charles R Greathouse IV at Mon May 13 01:48:15 EDT 2013
PROG

(PARI) a(n)= 2*polchebyshev(n+1, 1, 5)+polchebyshev(n, 1, 5) \\ ) \\ _Charles R Greathouse IV, _, Jun 11 2011

Discussion
Mon May 13 01:48
OEIS Server: https://oeis.org/edit/global/1914
#13 by Russ Cox at Sat Mar 31 13:20:08 EDT 2012
AUTHOR

_Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), _, Nov 08 2002

Discussion
Sat Mar 31 13:20
OEIS Server: https://oeis.org/edit/global/878

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 29 09:16 EDT 2024. Contains 375511 sequences. (Running on oeis4.)