Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,0,0 for x=0,1,2,3,4.

A197534

Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,0,0 for x=0,1,2,3,4.

Terms

    a(0) =9a(1) =73a(2) =868a(3) =9373a(4) =107655a(5) =1220630a(6) =14056707a(7) =162042137a(8) =1874230689a(9) =21698542215a(10) =251403042154

External references