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A008450 Theta series of A_10 lattice. 0
1, 110, 1980, 10230, 30140, 79992, 155100, 302280, 487080, 839630, 1188660, 1845360, 2494470, 3610200, 4548060, 6490374, 7786790, 10545480, 12579600, 16461720, 19071162, 24859560, 27742440 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 110.

LINKS

Table of n, a(n) for n=0..22.

MATHEMATICA

terms = 23; f[q_] = LatticeData["A10", "ThetaSeriesFunction"][-I Log[q]/Pi]; s = Normal[Series[f[q], {q, 0, 2 terms}]]; Partition[ CoefficientList[s, q] , 2][[All, 1]][[1 ;; terms]] // Round (* Jean-Fran├žois Alcover, Jul 07 2017 *)

CROSSREFS

Sequence in context: A232339 A200877 A205348 * A163729 A251020 A245876

Adjacent sequences:  A008447 A008448 A008449 * A008451 A008452 A008453

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified November 15 11:35 EST 2018. Contains 317238 sequences. (Running on oeis4.)