A140310 Number of n X n binary matrices containing no more than seven 1s in any 3 X 3 sub-block.

1, 2, 16, 502, 61788, 29829353, 56365481377, 417452923577327, 12115365147171963168, 1377708150938828616858899, 613888995116283293759860580312, 1071847970096627711898648239726154442

Offset: 0

Author

R. H. Hardin, May 27 2008

Keywords

• nonn

Crossrefs

Cf. A139810.