A034601 Theta series of (putative) extremal 2-modular even lattice in dimension 28.

1, 0, 1512, 301056, 12484584, 230694912, 2429885472, 18309722112, 102280003560, 480352911360, 1860467600880, 6523976632320, 19905705026592, 57236239097856, 147668005952064, 367785139212288

Offset

0,3

Links

Table of n, a(n) for n=0..15.

H.-G. Quebbemann, Modular lattices in Euclidean spaces, J. Number Theory, 54 (1995), 190-202.

Formula

G.f.: t(x)^7 - 168*t(x)^3*d(x) where t(x) is the g.f. for A004011 and d(x) is the g.f. for A002288. - Sean A. Irvine, Oct 25 2025

Crossrefs

Sequence in context: A239175 A037150 A276291 * A022059 A134614 A134613

Adjacent sequences: A034598 A034599 A034600 * A034602 A034603 A034604

Keyword

nonn,changed

Author

N. J. A. Sloane

Status

approved