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

1,1

Comments

Column 8 of A184673

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Sequence in context: A155961 A282401 A063412 * A038686 A017086 A017170

Adjacent sequences: A184669 A184670 A184671 * A184673 A184674 A184675

Keyword

nonn

Author

R. H. Hardin Jan 19 2011

Status

approved