Number of (n+1)X4 binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums.

A188305

Number of (n+1)X4 binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums.

Terms

    a(0) =36a(1) =664a(2) =3784a(3) =30096a(4) =203584a(5) =1514522a(6) =10660334a(7) =77627954a(8) =553295656a(9) =3999339740a(10) =28648406172a(11) =206430645818

External references