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A023933 Theta series of A*_21 lattice. +0
1
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 44, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 462, 0, 0, 0, 462, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3080, 0, 0, 0, 0, 0, 0, 0, 9240, 0, 0, 0, 0, 0, 0, 14630, 0, 0, 0, 0, 0, 0, 0, 0 (list; graph; listen)
OFFSET

0,22

REFERENCES

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 114.

CROSSREFS

Adjacent sequences: A023930 A023931 A023932 this_sequence A023934 A023935 A023936

Sequence in context: A087529 A050525 A138086 this_sequence A022075 A037939 A040010

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified November 8 20:39 EST 2009. Contains 166234 sequences.


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