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

A196075

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

Terms

    a(0) =0a(1) =6a(2) =6a(3) =39a(4) =77a(5) =296a(6) =931a(7) =2638a(8) =8969a(9) =29941a(10) =99585a(11) =315727a(12) =1074032a(13) =3477361a(14) =11370172a(15) =37477271a(16) =122469356a(17) =399765201a(18) =1309196450a(19) =4286354555a(20) =14003095258a(21) =45836607641a(22) =149994346388a(23) =490592491099

External references