817280

Appears in sequences

• Number of planar partitions of n, but partitions that are mirror images of each other (when regarded as 3-D objects) are counted only once.at n=26A048140
• Number of ways to tile a 5 X n area with 1 X 1 and 2 X 2 tiles.at n=11A054855
• Number of n X n binary matrices, symmetric under horizontal reflection, with no more than 1 one in any 2 X 2 subblock.at n=10A141482
• T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no equal horizontal neighbors and new values introduced sequentially from 0.at n=47A264945
• Number of 3 X n arrays containing n copies of 0..3-1 with no equal horizontal neighbors and new values introduced sequentially from 0.at n=7A264946