A252920 Number of (3+2)X(n+2) 0..3 arrays with every consecutive three elements in every row having 2 or 3 distinct values, in every column 1 or 2 distinct values, in every diagonal 2 distinct values, and in every antidiagonal 2 distinct values, and new values 0 upwards introduced in row major order

35674, 418853, 5247300, 67554413, 904486202, 12006682353, 160456041308, 2161866908346, 29002697628640, 389999512255547, 5251871898866981, 70639675506138194, 950670868788010336, 12799386451710340286

Offset

1,1

Comments

Row 3 of A252917

Links

R. H. Hardin, Table of n, a(n) for n = 1..41

Example

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

Crossrefs

Sequence in context: A163680 A172712 A161023 * A156405 A065611 A101252

Adjacent sequences: A252917 A252918 A252919 * A252921 A252922 A252923

Keyword

nonn

Author

R. H. Hardin, Dec 24 2014

Status

approved