T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00001001 or 00100101.
A260980
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00001001 or 00100101.
Terms
- a(0) =48a(1) =91a(2) =91a(3) =204a(4) =133a(5) =204a(6) =483a(7) =239a(8) =239a(9) =483a(10) =1146a(11) =481a(12) =372a(13) =481a(14) =1146a(15) =2755a(16) =925a(17) =732a(18) =732a(19) =925a(20) =2755a(21) =6526a(22) =1873a(23) =1288a(24) =1513a(25) =1288a(26) =1873a(27) =6526a(28) =15419a(29) =3683
External references
- oeis: A260980