T(n,k) = Number of n X k toroidal 0..2 arrays with each element having the sum of its vertical neighbors equal to the sum of its horizontal neighbors.
A184099
T(n,k) = Number of n X k toroidal 0..2 arrays with each element having the sum of its vertical neighbors equal to the sum of its horizontal neighbors.
Terms
- a(0) =3a(1) =3a(2) =3a(3) =3a(4) =9a(5) =3a(6) =3a(7) =3a(8) =3a(9) =3a(10) =3a(11) =9a(12) =87a(13) =9a(14) =3a(15) =3a(16) =3a(17) =3a(18) =3a(19) =3a(20) =3a(21) =3a(22) =9a(23) =3a(24) =361a(25) =3a(26) =9a(27) =3a(28) =3a(29) =3
External references
- oeis: A184099