T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010001.
A260544
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010001.
Terms
- a(0) =40a(1) =75a(2) =75a(3) =193a(4) =131a(5) =193a(6) =337a(7) =310a(8) =310a(9) =337a(10) =582a(11) =566a(12) =774a(13) =566a(14) =582a(15) =1350a(16) =976a(17) =1411a(18) =1411a(19) =976a(20) =1350a(21) =2732a(22) =2229a(23) =2226a(24) =2775a(25) =2226a(26) =2229a(27) =2732a(28) =5037a(29) =4296
External references
- oeis: A260544