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A107546 Coordination sequence for B_13 lattice 0
1, 338, 21554, 548418, 7758530, 72431762, 495680562, 2668186562, 11873899778, 45303445330, 152290870706, 460565724866, 1273675451074, 3262741154194, 7822976222386, 17705155093314, 38088388507650, 78337815542610, 154794656025906, 295082861864258, 544593699459266 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..20.

Index entries for linear recurrences with constant coefficients, signature (13,-78,286,-715,1287,-1716,1716,-1287,715,-286,78,-13,1).

FORMULA

G.f.: -(x^13 + 2613*x^12 + 79014*x^11 + 882310*x^10 + 4673955*x^9 + 13017303*x^8 + 20034276*x^7 + 17363268*x^6 + 8423415*x^5 + 2214355*x^4 + 294294*x^3 + 17238*x^2 + 325*x + 1) / (x - 1)^13. [Colin Barker, Nov 21 2012]

CROSSREFS

Sequence in context: A232782 A035750 A186043 * A235880 A158000 A252447

Adjacent sequences:  A107543 A107544 A107545 * A107547 A107548 A107549

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, May 29 2005

STATUS

approved

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Last modified January 22 02:46 EST 2022. Contains 350481 sequences. (Running on oeis4.)