Number of (n+2) X 4 binary arrays avoiding patterns 000 and 101 in rows, columns and nw-to-se diagonals.

A202526

Number of (n+2) X 4 binary arrays avoiding patterns 000 and 101 in rows, columns and nw-to-se diagonals.

Terms

    a(0) =198a(1) =518a(2) =1084a(3) =2232a(4) =4901a(5) =10584a(6) =22525a(7) =48429a(8) =104282a(9) =223728a(10) =480328a(11) =1032213a(12) =2217044a(13) =4761249a(14) =10227241a(15) =21967770a(16) =47183252a(17) =101344728a(18) =217680229a(19) =467553984a(20) =1004256629a(21) =2157044997a(22) =4633115818a(23) =9951459720a(24) =21374732936

External references