Number of (n+2) X (1+2) 0..1 arrays with no 3 X 3 subblock diagonal sum 0 and no antidiagonal sum 3 and no row sum 0 or 3 and no column sum 0 or 3.

A258959

Number of (n+2) X (1+2) 0..1 arrays with no 3 X 3 subblock diagonal sum 0 and no antidiagonal sum 3 and no row sum 0 or 3 and no column sum 0 or 3.

Terms

    a(0) =66a(1) =158a(2) =214a(3) =462a(4) =676a(5) =1374a(6) =2040a(7) =4104a(8) =6136a(9) =12296a(10) =18424a(11) =36872a(12) =55288a(13) =110600a(14) =165880a(15) =331784a(16) =497656a(17) =995336a(18) =1492984a(19) =2985992a(20) =4478968a(21) =8957960a(22) =13436920a(23) =26873864a(24) =40310776a(25) =80621576a(26) =120932344a(27) =241864712a(28) =362797048a(29) =725594120

External references