A183800 1/4 the number of (n+1)X8 0..3 arrays with no 2X2 subblock having sum 6

294840155, 5558261214722, 103901117941072621, 1945547111978093787994, 36416871665698098357399165, 681711632433215037867828560638

Offset

1,1

Comments

Column 7 of A183802

Links

Table of n, a(n) for n=1..6.

Example

Some solutions for 3X8
..0..0..0..0..0..2..3..1....0..0..0..0..0..0..1..3....0..0..0..0..0..2..0..0
..0..0..0..0..0..0..3..1....0..0..0..0..0..0..1..2....0..0..0..0..0..2..1..3
..0..0..0..0..0..3..2..3....0..0..0..0..0..1..0..0....0..0..0..0..0..2..3..1

Crossrefs

Sequence in context: A291459 A034640 A186015 * A289908 A182990 A022219

Adjacent sequences: A183797 A183798 A183799 * A183801 A183802 A183803

Keyword

nonn

Author

R. H. Hardin Jan 07 2011

Status

approved