Number of nX1 0..3 arrays with the counts of all possible adjacent horizontal and vertical pair sum values being within one of each other.

A203248

Number of nX1 0..3 arrays with the counts of all possible adjacent horizontal and vertical pair sum values being within one of each other.

Terms

    a(0) =4a(1) =16a(2) =48a(3) =116a(4) =220a(5) =288a(6) =232a(7) =96a(8) =1520a(9) =11424a(10) =51588a(11) =147516a(12) =262188a(13) =265968a(14) =118152a(15) =2407728a(16) =21719616a(17) =111520288a(18) =349455712a(19) =664646688a(20) =707435200a(21) =324489120a(22) =7180862720a(23) =69332666120a(24) =376038448800

External references