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A126921 Coordination sequence for 12-dimensional cyclotomic lattice Z[zeta_28]. 0
1, 28, 392, 3668, 25732, 144060, 670488, 2672852, 9344328, 29209292, 82958120, 216938148, 528131212, 1207976588, 2615828152, 5397362180, 10669093008, 20297542972, 37310805448, 66491509812, 115213838740, 194603575068, 321119500632, 518677185908, 821462669272 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..24.

M. Beck and S. Hosten, Cyclotomic polytopes and growth series of cyclotomic lattices, arXiv math.CO/0508136

FORMULA

G.f.: (x^6+8*x^5+29*x^4+64*x^3+29*x^2+8*x+1)^2/(1-x)^12.

MATHEMATICA

CoefficientList[Series[(x^6+8x^5+29x^4+64x^3+29x^2+8x+1)^2/(1-x)^12, {x, 0, 30}], x] (* Harvey P. Dale, Apr 15 2020 *)

CROSSREFS

Sequence in context: A331353 A177108 A283637 * A035709 A035476 A042518

Adjacent sequences:  A126918 A126919 A126920 * A126922 A126923 A126924

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Mar 18 2007

STATUS

approved

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Last modified November 28 22:01 EST 2021. Contains 349415 sequences. (Running on oeis4.)