Number of (n+1)X(6+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0011 or 0111.

A259248

Number of (n+1)X(6+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0011 or 0111.

Terms

    a(0) =588a(1) =5216a(2) =41552a(3) =361728a(4) =2964676a(5) =25462352a(6) =211569948a(7) =1802996568a(8) =15090948960a(9) =128059095616

External references