A209813 Number of (n+1)X8 0..3 arrays with every 2X2 subblock having two distinct values, and new values 0..3 introduced in row major order

173789, 23398105, 3428713825, 555404234236, 91909548662623, 15504605303759031, 2632434564856390561, 449096913581005026335, 76776883203141578986271, 13144329639287431608225799

Offset

1,1

Comments

Column 7 of A209814

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A204792 A281621 A147314 * A034632 A251155 A166264

Adjacent sequences: A209810 A209811 A209812 * A209814 A209815 A209816

Keyword

nonn

Author

R. H. Hardin Mar 13 2012

Status

approved