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Theta series of 9-dimensional odd unimodular lattice E_8 + Z.
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%I #7 Aug 23 2024 21:12:06

%S 1,2,240,480,2162,4320,7200,13440,21840,35042,43680,60960,95520,

%T 125280,143040,178560,261362,315840,347280,423840,557280,665280,

%U 696480,804480,1069920,1261922,1227360,1418880,1845120,2034720,2066880,2346240,2890320

%N Theta series of 9-dimensional odd unimodular lattice E_8 + Z.

%D M. Peters, Sums of nine squares, Acta Arith., 102 (2002), 131-135.

%Y Convolution of A004009 and A000122.

%K nonn

%O 0,2

%A _N. J. A. Sloane_, Jun 17 2002