A205758 Number of 7X(n+1) 0..2 arrays with every 2X2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..2 introduced in row major order

69338, 542718, 3797920, 34977686, 292986186, 2917623614, 26828234464, 279459906314, 2723713739666, 29190925331248, 295846244829092, 3230320670138002, 33638289242782070, 371863257488907590

Offset

1,1

Comments

Row 6 of A205753

Links

R. H. Hardin, Table of n, a(n) for n = 1..28

Example

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

Crossrefs

Sequence in context: A031663 A105010 A190379 * A205588 A162874 A162989

Adjacent sequences: A205755 A205756 A205757 * A205759 A205760 A205761

Keyword

nonn

Author

R. H. Hardin Jan 30 2012

Status

approved