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A071967
Theta series of 9-dimensional odd unimodular lattice E_8 + Z.
0
1, 2, 240, 480, 2162, 4320, 7200, 13440, 21840, 35042, 43680, 60960, 95520, 125280, 143040, 178560, 261362, 315840, 347280, 423840, 557280, 665280, 696480, 804480, 1069920, 1261922, 1227360, 1418880, 1845120, 2034720, 2066880, 2346240, 2890320
OFFSET
0,2
REFERENCES
M. Peters, Sums of nine squares, Acta Arith., 102 (2002), 131-135.
CROSSREFS
Convolution of A004009 and A000122.
Sequence in context: A225784 A087226 A217972 * A024348 A006523 A294319
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jun 17 2002
STATUS
approved