A185931 Number of (n+1)X8 0..3 arrays with no 2X2 subblock trace equal to any horizontal or vertical neighbor 2X2 subblock trace

1417744768, 11879903064384, 103822107190857792, 903599949050079304640, 7873396878795015057964064, 68603053673782945157839799264, 597768284764394563452665098460064, 5208641276453182873667505562357251776

Offset

1,1

Comments

Column 7 of A185933

Links

R. H. Hardin, Table of n, a(n) for n = 1..10

Example

Some solutions for 3X8
..2..0..2..0..0..0..0..0....2..0..2..0..1..1..2..3....2..0..2..0..1..3..1..0
..0..0..0..0..0..1..3..0....0..0..0..0..0..1..2..3....0..0..0..0..0..2..3..0
..0..0..2..0..1..0..1..2....0..0..2..0..1..0..0..2....0..0..2..0..1..0..3..0

Crossrefs

Sequence in context: A105015 A225142 A333377 * A069320 A274902 A129249

Adjacent sequences: A185928 A185929 A185930 * A185932 A185933 A185934

Keyword

nonn

Author

R. H. Hardin Feb 06 2011

Status

approved