T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001111.
A260370
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001111.
Terms
- a(0) =48a(1) =78a(2) =78a(3) =208a(4) =127a(5) =208a(6) =436a(7) =342a(8) =342a(9) =436a(10) =616a(11) =700a(12) =912a(13) =700a(14) =616a(15) =1378a(16) =896a(17) =2014a(18) =2014a(19) =896a(20) =1378a(21) =2880a(22) =2047a(23) =2532a(24) =4633a(25) =2532a(26) =2047a(27) =2880a(28) =4904a(29) =4438
External references
- oeis: A260370