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A056947 Theta series of nonexistent Niemeier lattice of Coxeter number 1. 2
1, 24, 195984, 16779168, 397998672, 4629497040, 34417510848, 187489533504, 814881802320, 2975548760568, 9486548517600, 27052958750688, 70486228096704, 169931081461008, 384163595996544, 820166650027200 (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, 1988.

LINKS

Table of n, a(n) for n=0..15.

FORMULA

E_12(z)+(24h-c12)*D(12) where D(12) is unique cusp form of weight 12, c12=(2*pi)^12/(zeta(12)*gamma(12)) and h=1.

CROSSREFS

Sequence in context: A201495 A258924 A179268 * A305760 A048057 A305757

Adjacent sequences:  A056944 A056945 A056946 * A056948 A056949 A056950

KEYWORD

nonn

AUTHOR

Kok Seng Chua (chuaks(AT)ihpc.nus.edu.sg), Jul 17 2000

STATUS

approved

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Last modified October 19 14:49 EDT 2019. Contains 328223 sequences. (Running on oeis4.)