Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00010001.

A260205

Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00010001.

Terms

    a(0) =1044a(1) =2864a(2) =15715a(3) =71846a(4) =359112a(5) =1819901a(6) =8929505a(7) =44267361a(8) =220591626a(9) =1093197469a(10) =5423252998a(11) =26935491998a(12) =133662286873a(13) =663325778447

External references