Number of n X n binary matrices with no more than one 1 in any 3 X 3 sub-block.
A140304
Number of n X n binary matrices with no more than one 1 in any 3 X 3 sub-block.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =10a(4) =60a(5) =437a(6) =2875a(7) =36409a(8) =704468a(9) =14783959a(10) =461938624a(11) =22488554884
External references
- oeis: A140304