A205607 Number of (n+1) X 7 0..3 arrays with every 2 X 2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..3 introduced in row major order.

108173, 9502090, 979571551, 97605128794, 10366271787461, 1046956456530150, 109899225787392773, 11211535684842527722, 1169685856854744262666, 119879347132519641324542, 12459568360483143825667514

Offset

1,1

Comments

Column 6 of A205609.

Links

R. H. Hardin, Table of n, a(n) for n = 1..17

Example

Some solutions for n=4
..0..1..1..2..2..1..0....0..0..0..1..0..0..2....0..0..0..0..1..2..0
..2..2..3..3..0..1..2....0..3..0..0..0..2..2....0..2..0..1..1..2..2
..3..2..2..3..0..1..2....0..2..2..1..3..3..1....1..1..0..3..0..0..3
..3..0..1..3..2..1..3....2..2..1..1..3..1..1....0..1..0..0..0..3..3
..3..0..1..3..2..1..1....3..0..0..2..2..2..0....2..1..3..1..2..2..0

Crossrefs

Cf. A205609.

Sequence in context: A203882 A178284 A157825 * A205438 A102333 A236650

Adjacent sequences: A205604 A205605 A205606 * A205608 A205609 A205610

Keyword

nonn

Author

R. H. Hardin, Jan 29 2012

Status

approved