T(n,k) = One quarter the number of n X k toroidal 0..3 arrays with each element having the sum of its vertical neighbors equal to the sum of its horizontal neighbors.
A184101
T(n,k) = One quarter the number of n X k toroidal 0..3 arrays with each element having the sum of its vertical neighbors equal to the sum of its horizontal neighbors.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =1a(6) =1a(7) =1a(8) =1a(9) =1a(10) =1a(11) =4a(12) =85a(13) =4a(14) =1a(15) =1a(16) =1a(17) =1a(18) =1a(19) =1a(20) =1a(21) =1a(22) =4a(23) =1a(24) =484a(25) =1a(26) =4a(27) =1a(28) =1a(29) =1
External references
- oeis: A184101