T(n,k)=Number of nXk 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.
A297682
T(n,k)=Number of nXk 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.
Terms
- a(0) =2a(1) =4a(2) =4a(3) =7a(4) =11a(5) =8a(6) =13a(7) =29a(8) =33a(9) =16a(10) =24a(11) =80a(12) =150a(13) =98a(14) =32a(15) =44a(16) =219a(17) =629a(18) =742a(19) =291a(20) =64a(21) =81a(22) =597a(23) =2790a(24) =4633a(25) =3744a(26) =865a(27) =128a(28) =149a(29) =1632
External references
- oeis: A297682