A184672 Number of (n+1)X9 0..3 arrays with no 2X2 subblock summing to less than 6.

3432961182, 157454260497016, 5269979734803579913, 198432026871542606565562, 7198790025550990326313861165, 264615725211389828099780842721919, 9684133255072575015900450075888762942

Offset: 1

Author

R. H. Hardin Jan 19 2011

Keywords

• nonn

Comments

Column 8 of A184673

Examples

			Some solutions for 3X9
..0..2..0..2..2..2..2..2..0....0..2..0..2..2..2..0..2..3
..2..3..1..3..0..2..3..2..3....2..3..1..3..0..2..2..3..1
..0..2..0..2..2..2..3..2..0....0..2..0..2..2..3..2..1..2