Number of nX3 binary arrays without the pattern 0 0 1 diagonally, vertically or antidiagonally.

A189690

Number of nX3 binary arrays without the pattern 0 0 1 diagonally, vertically or antidiagonally.

Terms

    a(0) =8a(1) =64a(2) =292a(3) =1298a(4) =5172a(5) =20316a(6) =77752a(7) =295720a(8) =1117080a(9) =4209924a(10) =15835990a(11) =59521532a(12) =223600028a(13) =839772726a(14) =3153450118a(15) =11840705184a(16) =44458053838a(17) =166922053694a(18) =626717259422

External references