A185920 Number of (n+1)X3 0..3 arrays with no 2X2 subblock determinant equal to any horizontal or vertical neighbor 2X2 subblock determinant

3516, 158806, 7232034, 328811578, 14927163064, 678146728482, 30800191295066, 1399014564276542, 63544539466260468, 2886280358846258546, 131098386145980056748, 5954655860333220640992, 270467958454465457232992

Offset

1,1

Comments

Column 2 of A185923

Links

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

Example

Some solutions for 5X3
..0..1..2....0..1..0....0..1..0....0..1..0....0..1..0....0..1..0....0..1..2
..2..0..2....2..0..2....2..0..2....2..0..2....2..0..1....2..0..1....2..0..2
..0..1..1....3..1..0....1..1..1....1..1..2....3..1..2....2..1..0....2..1..3
..3..2..1....3..3..1....2..0..3....2..0..1....2..2..0....3..3..2....1..2..1
..3..0..2....3..3..2....2..2..3....3..2..0....0..0..3....0..2..1....3..1..1

Crossrefs

Sequence in context: A205071 A263302 A205278 * A264450 A187726 A267125

Adjacent sequences: A185917 A185918 A185919 * A185921 A185922 A185923

Keyword

nonn

Author

R. H. Hardin Feb 06 2011

Status

approved