T(n,k) = Number of n X k 0..3 arrays with exactly floor(n X k/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..3 order.
A222275
T(n,k) = Number of n X k 0..3 arrays with exactly floor(n X k/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..3 order.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =3a(7) =4a(8) =4a(9) =3a(10) =4a(11) =13a(12) =4a(13) =13a(14) =4a(15) =8a(16) =40a(17) =81a(18) =81a(19) =40a(20) =8a(21) =10a(22) =162a(23) =364a(24) =1042a(25) =364a(26) =162a(27) =10a(28) =55a(29) =888
External references
- oeis: A222275