A183671 Number of (n+1)X9 0..6 arrays with every 2x2 subblock summing to 12

64979929, 129463663, 311907001, 870960607, 2719942729

Offset

1,1

Comments

Column 8 of A183672

Links

Table of n, a(n) for n=1..5.

Example

Some solutions for 3X9
..0..4..0..6..0..6..1..6..2....0..6..0..5..0..5..3..2..0
..3..5..3..3..3..3..2..3..1....4..2..4..3..4..3..1..6..4
..0..4..0..6..0..6..1..6..2....0..6..0..5..0..5..3..2..0

Crossrefs

Sequence in context: A164725 A164726 A237157 * A237339 A224589 A224590

Adjacent sequences: A183668 A183669 A183670 * A183672 A183673 A183674

Keyword

nonn

Author

R. H. Hardin Jan 06 2011

Status

approved