T(n,k)=Number of nXk 0..3 arrays with each element equal to either the sum mod 4 of its horizontal and vertical neighbors or the sum mod 4 of its diagonal and antidiagonal neighbors.
A183541
T(n,k)=Number of nXk 0..3 arrays with each element equal to either the sum mod 4 of its horizontal and vertical neighbors or the sum mod 4 of its diagonal and antidiagonal neighbors.
Terms
- a(0) =1a(1) =4a(2) =4a(3) =7a(4) =16a(5) =7a(6) =10a(7) =43a(8) =43a(9) =10a(10) =22a(11) =128a(12) =133a(13) =128a(14) =22a(15) =43a(16) =416a(17) =1326a(18) =1326a(19) =416a(20) =43a(21) =73a(22) =1287a(23) =4583a(24) =16704a(25) =4583a(26) =1287a(27) =73a(28) =139a(29) =3996
External references
- oeis: A183541