A204975 Number of nX5 0..2 arrays with no occurrence of three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..2 introduced in row major order

30, 5400, 226908, 11815256, 594430765, 30057359681, 1519010368414, 76757855124562, 3878731054806384, 196001179244804717, 9904372451888881080, 500490203444826245265, 25290888836528806246336, 1278005232465153039958786

Offset

1,1

Comments

Column 5 of A204978

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A159401 A288033 A341875 * A204702 A206647 A321427

Adjacent sequences: A204972 A204973 A204974 * A204976 A204977 A204978

Keyword

nonn

Author

R. H. Hardin Jan 21 2012

Status

approved