T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with every element equal to at least one vertical or antidiagonal neighbor and the top left element equal to 0.
A268159
T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with every element equal to at least one vertical or antidiagonal neighbor and the top left element equal to 0.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =0a(6) =0a(7) =1a(8) =0a(9) =0a(10) =0a(11) =3a(12) =8a(13) =6a(14) =0a(15) =0a(16) =7a(17) =14a(18) =36a(19) =0a(20) =0a(21) =0a(22) =17a(23) =52a(24) =906a(25) =456a(26) =120a(27) =0a(28) =0a(29) =42
External references
- oeis: A268159