T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00010001.
A260207
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00010001.
Terms
- a(0) =26a(1) =44a(2) =44a(3) =106a(4) =80a(5) =106a(6) =220a(7) =207a(8) =207a(9) =220a(10) =478a(11) =479a(12) =685a(13) =479a(14) =478a(15) =1044a(16) =1163a(17) =1857a(18) =1857a(19) =1163a(20) =1044a(21) =2274a(22) =2864a(23) =5291a(24) =5998a(25) =5291a(26) =2864a(27) =2274a(28) =4940a(29) =6895
External references
- oeis: A260207