A210173 Number of (n+1)X8 0..3 arrays containing all values 0..3 with every 2X2 subblock having two or four distinct values, and new values 0..3 introduced in row major order

447429, 121178151, 31194685583, 8015152545175, 2054059689574097, 526005343487519133, 134623935213997208181, 34444100480845830787435, 8810801446317160038967977, 2253508518406295673345100975

Offset

1,1

Comments

Column 7 of A210174

Links

R. H. Hardin, Table of n, a(n) for n = 1..177

Example

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

Crossrefs

Sequence in context: A224634 A251349 A210307 * A202569 A224635 A234231

Adjacent sequences: A210170 A210171 A210172 * A210174 A210175 A210176

Keyword

nonn

Author

R. H. Hardin Mar 18 2012

Status

approved