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A023945 Theta series of laminated lattice LAMBDA_23. 0
1, 0, 93150, 6476800, 133204500, 1384998912, 9403968600, 47406643200, 192825064350, 663509299200, 2007834672456, 5456580940800, 13618454702600, 31528851609600, 68717357121600, 141663767066624, 279245882826900 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Theta series of the 23-dimensional sublattice of the Leech lattice orthogonal to any norm 4 vector

REFERENCES

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 174.

LINKS

Table of n, a(n) for n=0..16.

G. Nebe and N. J. A. Sloane, Home page for this lattice

CROSSREFS

Sequence in context: A183853 A128277 A237682 * A203784 A206683 A234215

Adjacent sequences:  A023942 A023943 A023944 * A023946 A023947 A023948

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Kok Seng Chua (chuaks(AT)ihpc.nus.edu.sg), Sep 06 2001

STATUS

approved

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Last modified March 23 14:17 EDT 2019. Contains 321431 sequences. (Running on oeis4.)