login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A029599 Theta series of quadratic form with Gram matrix [ 4, 1, 0; 1, 2, 1; 0, 1, 6 ]. 1

%I #14 Jul 17 2014 12:28:01

%S 1,2,4,4,8,10,4,2,12,14,0,14,8,8,16,12,16,10,12,0,20,20,8,12,16,12,16,

%T 8,8,36,12,16,28,12,8,18,32,20,0,12,8,28,12,6,40,34,16,18,16,20,28,12,

%U 16,40,24,10,40,0,12,28,32,18,12,14,28,32,20,16,28,40,16,36,36,10,28,24,2

%N Theta series of quadratic form with Gram matrix [ 4, 1, 0; 1, 2, 1; 0, 1, 6 ].

%C This is the monoclinic C lattice (the even holotype) of dimension 3.

%H John Cannon, <a href="/A029599/b029599.txt">Table of n, a(n) for n = 0..5000</a>

%H G. Nebe and N. J. A. Sloane, <a href="http://www.math.rwth-aachen.de/~Gabriele.Nebe/LATTICES/monoclinicCe.html">Home page for this lattice</a>

%e 1 + 2*q^2 + 4*q^4 + 4*q^6 + 8*q^8 + 10*q^10 + 4*q^12 + 2*q^14 + 12*q^16 + ...

%K nonn

%O 0,2

%A _N. J. A. Sloane_.

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 22:36 EDT 2024. Contains 371917 sequences. (Running on oeis4.)