A252887 Number of (5+2) X (n+2) 0..2 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.

717426, 9590968, 160464987, 2937661429, 55869292808, 1063774566780, 20361858579086, 390655281525121, 7491014851778687, 143863188831952554, 2762695897224511101, 53040833335697274698, 1018801052975092493137

Offset

1,1

Comments

Row 5 of A252882.

Links

R. H. Hardin, Table of n, a(n) for n = 1..16

Example

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

Crossrefs

Cf. A252882.

Sequence in context: A249210 A102501 A301643 * A204403 A250372 A015346

Adjacent sequences: A252884 A252885 A252886 * A252888 A252889 A252890

Keyword

nonn

Author

R. H. Hardin, Dec 24 2014

Status

approved