Number of (n+1) X 9 binary arrays with no 2 X 2 subblock sum equal to any horizontal or vertical neighbor 2 X 2 subblock sum.

A185797

Number of (n+1) X 9 binary arrays with no 2 X 2 subblock sum equal to any horizontal or vertical neighbor 2 X 2 subblock sum.

Terms

    a(0) =11220a(1) =20864a(2) =47776a(3) =164576a(4) =433296a(5) =1379208a(6) =3629540a(7) =13289252a(8) =35756268a(9) =128976744a(10) =346446144a(11) =1333284060a(12) =3588481008a(13) =13880081488a(14) =37224984364a(15) =148837476180a(16) =398218723908

External references