T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A303513
T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 2, 4, 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) =20a(8) =25a(9) =8a(10) =16a(11) =52a(12) =78a(13) =81a(14) =16a(15) =32a(16) =136a(17) =230a(18) =420a(19) =264a(20) =32a(21) =64a(22) =360a(23) =801a(24) =1596a(25) =2088a(26) =857a(27) =64a(28) =128a(29) =960
External references
- oeis: A303513