The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A265058 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A265058

Coordination sequence for (2,3,8) tiling of hyperbolic plane.
(history; published version)

#19 by Ray Chandler at Tue Feb 20 16:06:50 EST 2024

STATUS

editing

approved

#18 by Ray Chandler at Tue Feb 20 16:06:46 EST 2024

LINKS

<a href="/index/Rec#order_10">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 1, 0, 1, 0, 1, 0, 0, -1).

STATUS

approved

editing

#17 by Joerg Arndt at Mon Aug 07 03:24:45 EDT 2017

STATUS

reviewed

approved

#16 by Michel Marcus at Mon Aug 07 00:18:24 EDT 2017

STATUS

proposed

reviewed

#15 by G. C. Greubel at Sun Aug 06 23:04:05 EDT 2017

STATUS

editing

proposed

#14 by G. C. Greubel at Sun Aug 06 23:03:54 EDT 2017

LINKS

G. C. Greubel, <a href="/A265058/b265058.txt">Table of n, a(n) for n = 0..1000</a>

PROG

(PARI) x='x+O('x^50); Vec((x+1)^2*(x^2+x+1)*(x^6+x^4+x^2+1)/(x^10-x^7-x^5-x^3+1)) \\ G. C. Greubel, Aug 06 2017

STATUS

approved

editing

#13 by Bruno Berselli at Wed Dec 30 03:22:21 EST 2015

STATUS

editing

approved

#12 by Bruno Berselli at Wed Dec 30 03:22:18 EST 2015

FORMULA

G.f.: (Xx+1)^2*(Xx^2+Xx+1)*(Xx^6+Xx^4+Xx^2+1)/(Xx^10-Xx^7-Xx^5-Xx^3+1).

KEYWORD

nonn,easy,new

STATUS

proposed

editing

#11 by Vincenzo Librandi at Wed Dec 30 03:18:19 EST 2015

STATUS

editing

proposed

#10 by Vincenzo Librandi at Wed Dec 30 03:17:43 EST 2015

MATHEMATICA

CoefficientList[Series[(x + 1)^2 (x^2 + x + 1) (x^6 + x^4 + x^2 + 1)/(x^10 - x^7 - x^5 - x^3 + 1), {x, 0, 60}], x] (* Vincenzo Librandi, Dec 30 2015 *)

STATUS

approved

editing

Discussion

Wed Dec 30

03:18

Vincenzo Librandi: Why in Gf x it is written in capital letters?