T(n,k)=Number of nXk 0..1 arrays with exactly floor(nXk/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.

A222509

T(n,k)=Number of nXk 0..1 arrays with exactly floor(nXk/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =3a(7) =4a(8) =4a(9) =0a(10) =4a(11) =3a(12) =4a(13) =11a(14) =0a(15) =4a(16) =10a(17) =15a(18) =35a(19) =8a(20) =0a(21) =5a(22) =32a(23) =35a(24) =84a(25) =87a(26) =44a(27) =0a(28) =20a(29) =44

External references