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

A196917

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

Terms

    a(0) =1a(1) =3a(2) =7a(3) =12a(4) =27a(5) =58a(6) =121a(7) =257a(8) =545a(9) =1153a(10) =2442a(11) =5172a(12) =10952a(13) =23193a(14) =49116a(15) =104012a(16) =220265a(17) =466453a(18) =987802a(19) =2091857a(20) =4429902a(21) =9381153a(22) =19866361a(23) =42070767a(24) =89092785a(25) =188670778a(26) =399545962a(27) =846113942a(28) =1791805877a(29) =3794486938

External references