T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001001.
A260294
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001001.
Terms
- a(0) =48a(1) =104a(2) =104a(3) =274a(4) =201a(5) =274a(6) =560a(7) =544a(8) =544a(9) =560a(10) =966a(11) =1145a(12) =1336a(13) =1145a(14) =966a(15) =2300a(16) =1524a(17) =2966a(18) =2966a(19) =1524a(20) =2300a(21) =4762a(22) =3591a(23) =3764a(24) =5629a(25) =3764a(26) =3591a(27) =4762a(28) =8252a(29) =8550
External references
- oeis: A260294