504690017

Appears in sequences

• Number of n X n array permutations with each element moved no more than a city block distance of two.at n=3A188952
• Number of nX4 array permutations with each element moved no more than a city block distance of two.at n=3A188955
• T(n,k)=Number of nXk array permutations with each element moved no more than a city block distance of two.at n=24A188958