A210403 Number of (n+1)X8 0..3 arrays with every 2X2 subblock having one or three distinct values, and new values 0..3 introduced in row major order

4324477, 7662761615, 13436785945910, 23591974220786341, 41416871324907300274, 72710583381311090972861, 127648944977287507883659858, 224097463697668976495970811325

Offset

1,1

Comments

Column 7 of A210404

Links

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

Example

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

Crossrefs

Sequence in context: A205271 A234168 A015349 * A263155 A254266 A254259

Adjacent sequences: A210400 A210401 A210402 * A210404 A210405 A210406

Keyword

nonn

Author

R. H. Hardin Mar 21 2012

Status

approved