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A023930 Theta series of A*_18 lattice. 0

%I #8 Jul 15 2020 02:17:59

%S 1,0,0,0,0,0,0,0,0,38,0,0,0,0,0,0,0,342,0,342,0,0,0,0,1938,0,0,0,5814,

%T 0,7752,0,0,0,0,23256,31046,0,23256,54264,0,0,100776,116964,151164,

%U 184756,0,233244,0,331398,0,0,0,0,736440,825588,0,548454,1325592,0

%N Theta series of A*_18 lattice.

%D J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 114.

%H Kok Seng Chua, <a href="https://doi.org/10.1090/S0002-9939-01-06080-4">The Root Lattice A*n and Ramanujan's Circular Summation of Theta Functions</a>, Proc. Amer. Math. Soc. 130 (2002), 1-8.

%K nonn

%O 0,10

%A _N. J. A. Sloane_.

%E More terms from _Sean A. Irvine_, Jul 15 2020

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Last modified July 24 21:09 EDT 2024. Contains 374585 sequences. (Running on oeis4.)