[seqfan] Re: Paths on basket weave tiling

[Paul D Hanna]

>From corner to corner, what is the sum of the number of tiles under the paths and above the x-axis in an nXn tiling? 
 
---------- Original Message ----------
From: David Scambler <dscambler at bmm.com>
To: "seqfan at list.seqfan.eu" <seqfan at list.seqfan.eu>
Subject: [seqfan] Paths on basket weave tiling
Date: Thu, 17 Feb 2011 02:40:54 -0600

I thought I would try out paths on basket weave tiling...

http://en.wikipedia.org/wiki/File:Wallpaper_group-p4g-1.jpg

>From corner to corner it is the Central Dellanoy numbers A001850,
and staying weakly above x=y it is the little Schroeders A001003.

dave


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