T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302265
T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 2 or 3 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) =29a(8) =32a(9) =8a(10) =16a(11) =105a(12) =153a(13) =128a(14) =16a(15) =32a(16) =384a(17) =772a(18) =818a(19) =512a(20) =32a(21) =64a(22) =1405a(23) =3818a(24) =5922a(25) =4386a(26) =2048a(27) =64a(28) =128a(29) =5135
External references
- oeis: A302265