[seqfan] Re: FW: Paths on basket weave tiling
dscambler at bmm.com
Fri Feb 18 00:22:30 CET 2011
>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?
Actually, a 2n x 2n tiling because the tiles are 2x1, I get this for the area
So the number of tiles would be half that
No g.f. for this yet.
>From corner (0,0) to corner (2n, 2n) it is the Central Dellanoy numbers A001850,
and staying weakly above x=y it is the little Schroeders A001003.
More information about the SeqFan