T(n,k)=Number of nXk 0..2 arrays with exactly floor(nXk/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

A222690

T(n,k)=Number of nXk 0..2 arrays with exactly floor(nXk/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =0a(4) =3a(5) =0a(6) =3a(7) =4a(8) =8a(9) =0a(10) =4a(11) =18a(12) =32a(13) =50a(14) =0a(15) =8a(16) =56a(17) =220a(18) =420a(19) =216a(20) =0a(21) =10a(22) =237a(23) =664a(24) =3189a(25) =2050a(26) =1120a(27) =0a(28) =50a(29) =784

External references