T(n,k) = Number of n X k 0..1 arrays with every element equal to 0, 1, 2, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A303182
T(n,k) = Number of n X k 0..1 arrays with every element equal to 0, 1, 2, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =4a(4) =8a(5) =4a(6) =8a(7) =17a(8) =25a(9) =8a(10) =16a(11) =37a(12) =31a(13) =81a(14) =16a(15) =32a(16) =78a(17) =72a(18) =135a(19) =264a(20) =32a(21) =64a(22) =169a(23) =170a(24) =297a(25) =547a(26) =857a(27) =64a(28) =128a(29) =361
External references
- oeis: A303182