T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with every element equal to at least one diagonal or antidiagonal neighbor and the top left element equal to 0.
A268142
T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with every element equal to at least one diagonal 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) =0a(13) =6a(14) =0a(15) =0a(16) =5a(17) =8a(18) =6a(19) =0a(20) =0a(21) =0a(22) =12a(23) =32a(24) =672a(25) =0a(26) =120a(27) =0a(28) =0a(29) =26
External references
- oeis: A268142