T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001.
A259962
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001.
Terms
- a(0) =34a(1) =67a(2) =67a(3) =155a(4) =146a(5) =155a(6) =353a(7) =439a(8) =439a(9) =353a(10) =808a(11) =1187a(12) =1603a(13) =1187a(14) =808a(15) =1884a(16) =3227a(17) =5449a(18) =5449a(19) =3227a(20) =1884a(21) =4340a(22) =8964a(23) =18681a(24) =22622a(25) =18681a(26) =8964a(27) =4340a(28) =9925a(29) =24719
External references
- oeis: A259962