A199132 Number of nX7 0..2 arrays with values 0..2 introduced in row major order, the number of instances of each value within one of each other, and no element equal to any horizontal or vertical neighbor

19, 210, 1038, 48320, 887966, 5926852, 358599045, 7633754680, 56435001338, 3718131446504, 84113596169937, 647071266317908, 44371190146396476, 1031280656608709860, 8107333731404729122, 567373010032314560752

Offset

1,1

Comments

Column 7 of A199133

Links

R. H. Hardin, Table of n, a(n) for n = 1..22

Example

Some solutions for n=5
..0..1..0..1..2..0..1....0..1..0..2..1..2..1....0..1..0..2..1..0..1
..1..0..1..2..0..1..0....1..0..2..1..2..1..0....1..0..2..0..2..1..2
..0..2..0..1..2..0..2....0..2..1..2..1..2..1....0..1..0..2..1..2..1
..1..0..1..2..0..2..1....1..0..2..0..2..1..2....1..0..2..1..2..1..2
..2..1..2..1..2..0..2....0..2..0..1..0..2..0....0..2..1..2..0..2..0

Crossrefs

Sequence in context: A023017 A022647 A032613 * A201791 A099663 A202665

Adjacent sequences: A199129 A199130 A199131 * A199133 A199134 A199135

Keyword

nonn

Author

R. H. Hardin Nov 03 2011

Status

approved