A210266 Number of (n+1)X8 0..3 arrays containing all values 0..3 with every 2X2 subblock having three distinct values, and new values 0..3 introduced in row major order

3828928, 6467110597, 10588222391490, 17377926553935982, 28508853879455964312, 46772256594635018663098, 76734939290291126791703390, 125892128682791619473809468768, 206539882212054243580765021833408

Offset

1,1

Comments

Column 7 of A210267

Links

R. H. Hardin, Table of n, a(n) for n = 1..183

Example

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

Crossrefs

Sequence in context: A253869 A253876 A253542 * A036474 A344904 A344921

Adjacent sequences: A210263 A210264 A210265 * A210267 A210268 A210269

Keyword

nonn

Author

R. H. Hardin Mar 19 2012

Status

approved