Number of n X n binary matrices containing no more than six 1s in any 3 X 3 sub-block.
A140309
Number of n X n binary matrices containing no more than six 1s in any 3 X 3 sub-block.
Terms
- a(0) =1a(1) =2a(2) =16a(3) =466a(4) =51512a(5) =21425198a(6) =32840182186
External references
- oeis: A140309