T(n,k)=Number of nXk 0..1 arrays with every element equal to 2, 3, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A301400
T(n,k)=Number of nXk 0..1 arrays with every element equal to 2, 3, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =0a(6) =0a(7) =2a(8) =2a(9) =0a(10) =0a(11) =4a(12) =3a(13) =4a(14) =0a(15) =0a(16) =9a(17) =13a(18) =13a(19) =9a(20) =0a(21) =0a(22) =19a(23) =44a(24) =78a(25) =44a(26) =19a(27) =0a(28) =0a(29) =41
External references
- oeis: A301400