Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock sum greater than 4.

A184488

Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock sum greater than 4.

Terms

    a(0) =31a(1) =1983a(2) =421879a(3) =460055427

External references