Number of (n+1)X4 binary arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum.

A185792

Number of (n+1)X4 binary arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum.

Terms

    a(0) =100a(1) =224a(2) =510a(3) =1336a(4) =3196a(5) =7888a(6) =18616a(7) =47776a(8) =114688a(9) =287552a(10) =688224a(11) =1748816a(12) =4222224a(13) =10624992a(14) =25631024a(15) =64747856a(16) =157124640a(17) =395097680a(18) =958057168a(19) =2410200224a(20) =5872575888a(21) =14735969680a(22) =35868054112a(23) =89946082128a(24) =219845635408

External references