Number of n X 9 binary matrices with no 2 X 2 block having four 1's.
A181252
Number of n X 9 binary matrices with no 2 X 2 block having four 1's.
Terms
- a(0) =512a(1) =169209a(2) =61986457a(3) =22161786304
External references
- oeis: A181252
A181252
Number of n X 9 binary matrices with no 2 X 2 block having four 1's.