|
Search: id:A004536
|
|
|
| A004536 |
|
Theta series of 15-dimensional unimodular lattice A15+. |
|
+0
1
|
|
| 1, 0, 240, 3640, 23790, 99456, 323680, 895680, 2139780, 4528640, 8971872, 16946280, 29822520, 49365120, 80003520, 127221568, 193388910, 282616320, 409634640, 590913960, 825575016, 1115613440
(list; graph; listen)
|
|
|
OFFSET
|
0,3
|
|
|
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.
|
|
LINKS
|
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.
G. Nebe and N. J. A. Sloane, Home page for this lattice
|
|
CROSSREFS
|
Sequence in context: A049335 A004009 A005950 this_sequence A145094 A008340 A023906
Adjacent sequences: A004533 A004534 A004535 this_sequence A004537 A004538 A004539
|
|
KEYWORD
|
nonn,easy,nice
|
|
AUTHOR
|
N. J. A. Sloane (njas(AT)research.att.com).
|
|
|
Search completed in 0.002 seconds
|
