A206633 Number of (n+1)X7 0..2 arrays with every 2X3 or 3X2 subblock having no more than four equal edges, and new values 0..2 introduced in row major order

782246, 1649819344, 3486207195767, 7365962082764193, 15563412880264965921, 32883690237686565806902, 69479426940659354584343140, 146801978229825187395072986335, 310175569456316609985253179357234

Offset

1,1

Comments

Column 6 of A206635

Links

R. H. Hardin, Table of n, a(n) for n = 1..193

Example

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

Crossrefs

Sequence in context: A233948 A204312 A237089 * A184213 A205261 A157993

Adjacent sequences: A206630 A206631 A206632 * A206634 A206635 A206636

Keyword

nonn

Author

R. H. Hardin Feb 10 2012

Status

approved