A005951 Theta series of P_{9a} packing. (Formerly M5436)

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

Offset

0,5

References

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

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

Links

Table of n, a(n) for n=0..40.

Crossrefs

Sequence in context: A247344 A220601 A156168 * A294596 A294710 A206271

Adjacent sequences: A005948 A005949 A005950 * A005952 A005953 A005954

Keyword

nonn

Author

N. J. A. Sloane.

Status

approved