T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00000101.
A259952
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00000101.
Terms
- a(0) =34a(1) =60a(2) =60a(3) =156a(4) =170a(5) =156a(6) =365a(7) =549a(8) =549a(9) =365a(10) =801a(11) =1507a(12) =2438a(13) =1507a(14) =801a(15) =1825a(16) =4128a(17) =8699a(18) =8699a(19) =4128a(20) =1825a(21) =4272a(22) =11933a(23) =30351a(24) =35765a(25) =30351a(26) =11933a(27) =4272a(28) =9840a(29) =34337
External references
- oeis: A259952