A252992 Number of (n+2)X(6+2) 0..2 arrays with every consecutive three elements in every row and column having exactly 2 distinct values, in every diagonal 1 or 2 distinct values, in every antidiagonal 2 or 3 distinct values, and new values 0 upwards introduced in row major order

291448, 4486592, 80232248, 1564485159, 30940948009, 618832488265, 12432368877884, 250255753857694, 5041787244222098, 101631445454212323, 2049184800689121326, 41322113536941980635, 833338675294493304917

Offset

1,1

Comments

Column 6 of A252993

Links

R. H. Hardin, Table of n, a(n) for n = 1..35

Example

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

Crossrefs

Sequence in context: A093792 A068241 A250618 * A253532 A233988 A287048

Adjacent sequences: A252989 A252990 A252991 * A252993 A252994 A252995

Keyword

nonn

Author

R. H. Hardin, Dec 25 2014

Status

approved