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A005951 Theta series of P_{9a} packing.
(Formerly M5436)
+0
1
1, 0, 0, 0, 306, 0, 0, 0, 3024, 512, 0, 0, 13344, 0, 0, 0, 36594, 4608, 0, 0, 78048, 0, 0, 0, 149088, 18432, 0, 0, 256896, 0, 0, 0, 405072, 47616, 0, 0, 620306, 0, 0, 0, 900576 (list; graph; listen)
OFFSET

0,5

REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 140.

CROSSREFS

Sequence in context: A160577 A058828 A156168 this_sequence A158589 A030030 A064257

Adjacent sequences: A005948 A005949 A005950 this_sequence A005952 A005953 A005954

KEYWORD

nonn

AUTHOR

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

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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