A184216 Number of (n+1)X9 0..3 arrays with every 2X2 subblock sum greater than 6

605100146, 12084357225118, 142446559265305753, 2090316835956005082252, 28341873309921021614867363, 396580709395010561685287409609, 5483108738502332961190212851086871

Offset

1,1

Comments

Column 8 of A184217

Links

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

Example

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

Crossrefs

Sequence in context: A145277 A253166 A236948 * A123705 A237364 A371865

Adjacent sequences: A184213 A184214 A184215 * A184217 A184218 A184219

Keyword

nonn

Author

R. H. Hardin Jan 10 2011

Status

approved