A206619 Number of (n+1)X7 0..2 arrays with every 2X3 or 3X2 subblock having no more than two equal edges, and new values 0..2 introduced in row major order.
192358, 62250328, 26135187233, 10633148505553, 4289914143971114, 1738678950539792051, 704228581922250103909, 285197699391932223744199, 115508361295861948938141134, 46781700029539016314279246512
Offset: 1
Keywords
Examples
Some solutions for n=4 ..0..0..1..1..0..0..1....0..1..0..2..1..2..2....0..0..0..0..0..0..1 ..0..2..0..2..0..1..2....1..1..0..1..2..0..0....2..1..2..1..2..1..2 ..1..0..2..1..1..2..2....2..0..1..2..0..0..1....0..0..2..0..2..0..1 ..2..2..1..0..0..1..0....1..2..0..1..2..2..0....2..1..0..1..1..1..0 ..1..2..1..0..1..2..0....0..1..1..2..0..1..2....1..0..1..2..1..2..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..12
Comments