A034627 Theta series of extremal 3-modular even lattice in dimension 34.

1, 0, 0, 6528, 669222, 23794560, 439895808, 5182455168, 43880737824, 288930474624, 1559447873280, 7163528367744, 28827315287526, 103769713225728, 339536635723008, 1024167365758080, 2876670341074278

Offset

0,4

Links

Table of n, a(n) for n=0..16.

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

Formula

G.f.: t(x)^17 - 102*t(x)^11*d(x) + 1224*t(x)^5*d(x)^2 where t(x) is the g.f. for A004016 and d(x) is the g.f. for A007332. - Sean A. Irvine, Oct 25 2025

Crossrefs

Sequence in context: A068270 A216666 A260979 * A223217 A229391 A363909

Adjacent sequences: A034624 A034625 A034626 * A034628 A034629 A034630

Keyword

nonn,changed

Author

N. J. A. Sloane

Status

approved