[seqfan] Re: Two-fold symmetry sequence

[Frederick Schneider]

Sorry, that should be:

1,1,1,3,3,7

On Mon, Dec 29, 2008 at 2:28 PM, Frederick Schneider <
frederick.william.schneider at gmail.com> wrote:

> Hello,
>
> I tried to find but didn't see the number of distinct 2-fold symmetric
> shapes that can be made from n squares.
>
> Starting from n=1 :  1,1,1,3,3,6
>
> Here's an image explaining what I mean:
>
> http://www.bosola.org/grandpa/imgs/2-foldSymmetry.jpg
>
> Has anyone seen a similar sequence?  If not, I'll try to extend this at
> least a few terms out.
>
> Thanks,
> Fred
>
>