[seqfan] Re: A003757

[Max Alekseyev]

Just a side note.
I've found a recent preprint that (if I got it correctly) generalizes
Faase's results on counting spanning tree in grid graphs:

Paul Raff. Spanning Trees in Grid Graphs.
http://arxiv.org/abs/0809.2551

Regards,
Max

On Tue, Dec 16, 2008 at 10:57 AM, Richard Guy <rkg at cpsc.ucalgary.ca> wrote:
> Help!  In A003757, can someone tell me what D_4 is?
> Thanks!   R.
>