Number of n X n arrays containing n copies of 0..n-1 with no equal horizontal neighbors and new values introduced sequentially from 0.

A264939

Number of n X n arrays containing n copies of 0..n-1 with no equal horizontal neighbors and new values introduced sequentially from 0.

Terms

    a(0) =1a(1) =2a(2) =56a(3) =184740a(4) =137409486772

External references