A186212 Number of (n+1)X3 0..2 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant

175, 1969, 18873, 197619, 2008031, 20738153, 213108423, 2194753479, 22587046821, 232531438315, 2393657704397, 24641409679961, 253666806143927, 2611352484956083, 26882320490736795, 276737910767834565

Offset

1,1

Comments

Column 2 of A186218

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions for 5X3
..0..0..1....0..0..0....1..0..2....0..0..0....2..0..1....1..0..2....0..0..2
..0..0..2....2..0..2....0..0..0....1..0..0....0..0..0....0..0..1....1..0..1
..1..0..1....2..0..0....1..0..2....1..0..0....2..0..1....1..0..2....0..0..1
..0..0..1....2..0..2....2..0..0....2..0..2....1..0..2....0..0..0....0..0..2
..0..0..2....0..0..1....0..0..1....0..0..2....2..0..2....1..1..0....1..0..1

Crossrefs

Sequence in context: A349674 A205470 A187420 * A355713 A222774 A209710

Adjacent sequences: A186209 A186210 A186211 * A186213 A186214 A186215

Keyword

nonn

Author

R. H. Hardin Feb 15 2011

Status

approved