A252774 Number of (n+2)X(4+2) 0..3 arrays with every consecutive three elements in every row, column and nw-se diagonal having exactly two distinct values, and new values 0 upwards introduced in row major order

22295, 121043, 797340, 6142118, 51149836, 451291764, 4182615816, 39449312353, 381282828301, 3767301056971, 37191447134596, 371622619688928, 3754163562212629, 37678459964979454, 380924738976282695

Offset

1,1

Comments

Column 4 of A252777

Links

R. H. Hardin, Table of n, a(n) for n = 1..27

Example

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

Crossrefs

Sequence in context: A251825 A119568 A204333 * A253042 A216202 A154094

Adjacent sequences: A252771 A252772 A252773 * A252775 A252776 A252777

Keyword

nonn

Author

R. H. Hardin, Dec 21 2014

Status

approved