A209464 Number of nX7 0..6 arrays with every 2X2 subblock containing exactly one value repeat, and new values 0..6 introduced in row major order

877, 3966581, 54657856108, 937020001725427, 16716447554895729642, 300152638733732557375867

Offset

1,1

Comments

Column 7 of A209465

Links

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

Example

Some.solutions.for.n=4
..0..0..0..0..0..1..1....0..0..0..0..0..0..0....0..0..1..0..2..3..0
..1..2..1..2..1..3..4....1..2..1..2..1..2..1....1..2..0..2..1..1..3
..5..5..1..3..1..4..0....3..1..4..4..1..3..1....0..0..1..0..2..3..4
..6..1..0..3..4..2..2....1..4..5..3..1..6..6....3..1..2..0..4..4..0

Crossrefs

Sequence in context: A048791 A273657 A188391 * A209526 A208307 A208787

Adjacent sequences: A209461 A209462 A209463 * A209465 A209466 A209467

Keyword

nonn

Author

R. H. Hardin Mar 09 2012

Status

approved