T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010011.
A260767
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010011.
Terms
- a(0) =48a(1) =82a(2) =82a(3) =190a(4) =115a(5) =190a(6) =350a(7) =265a(8) =265a(9) =350a(10) =622a(11) =481a(12) =652a(13) =481a(14) =622a(15) =1315a(16) =798a(17) =1234a(18) =1234a(19) =798a(20) =1315a(21) =2478a(22) =1671a(23) =1740a(24) =2449a(25) =1740a(26) =1671a(27) =2478a(28) =4597a(29) =3196
External references
- oeis: A260767