T(n,k)=Sum of neighbor maps: number of nXk binary arrays indicating the locations of corresponding elements equal to the sum mod 3 of their horizontal, diagonal and antidiagonal neighbors in a random 0..2 nXk array.

A221666

T(n,k)=Sum of neighbor maps: number of nXk binary arrays indicating the locations of corresponding elements equal to the sum mod 3 of their horizontal, diagonal and antidiagonal neighbors in a random 0..2 nXk array.

Terms

    a(0) =2a(1) =2a(2) =4a(3) =8a(4) =12a(5) =8a(6) =16a(7) =64a(8) =48a(9) =16a(10) =24a(11) =256a(12) =512a(13) =256a(14) =32a(15) =64a(16) =992a(17) =3772a(18) =3772a(19) =856a(20) =64a(21) =128a(22) =4096a(23) =31744a(24) =63200a(25) =32768a(26) =4096a(27) =128a(28) =232a(29) =16384

External references