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 A023927 Theta series of A*_15 lattice. 1
 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 240, 0, 0, 0, 240, 0, 0, 0, 0, 0, 0, 1120, 0, 0, 0, 0, 0, 0, 0, 3360, 3640, 0, 0, 0, 0, 0, 0, 8736, 0, 0, 0, 0, 30608, 0, 0, 22880, 23790, 0, 0, 0, 0, 0, 0, 44160, 0, 0, 0, 0, 0, 0, 0, 87840 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,16 REFERENCES J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 114. LINKS Table of n, a(n) for n=0..79. G. Nebe and N. J. A. Sloane, Home page for this lattice EXAMPLE 1 + 32*q^15 + 240*q^28 + 240*q^32 + O(q^37) CROSSREFS Cf. A023906 (A_15). Sequence in context: A324268 A145210 A091308 * A345676 A240253 A057376 Adjacent sequences: A023924 A023925 A023926 * A023928 A023929 A023930 KEYWORD nonn AUTHOR N. J. A. Sloane. STATUS approved

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Last modified May 26 20:45 EDT 2024. Contains 372844 sequences. (Running on oeis4.)