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A004537 Theta series of 23-dimensional shorter Leech lattice. 0
1, 0, 0, 4600, 93150, 953856, 6476800, 32788800, 133204500, 458086400, 1384998912, 3771829800, 9403968600, 21771763200, 47406643200, 97917423808, 192825064350, 364086835200, 663509299200, 1171711866600 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

REFERENCES

J. H. Conway, A. M. Odlyzko and N. J. A. Sloane, Extremal Self-Dual Lattices Exist Only in Dimensions 1-8, 12, 14, 15, 23 and 24, Mathematika, 25 (1978), 36-43.

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 441.

LINKS

Table of n, a(n) for n=0..19.

N. Heninger, E. M. Rains and N. J. A. Sloane, On the Integrality of n-th Roots of Generating Functions, J. Combinatorial Theory, Series A, 113 (2006), 1732-1745.

CROSSREFS

Sequence in context: A205231 A231022 A185470 * A204655 A204652 A032745

Adjacent sequences:  A004534 A004535 A004536 * A004538 A004539 A004540

KEYWORD

nonn,nice

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified April 16 00:31 EDT 2014. Contains 240534 sequences.