A209524 Number of nX5 0..7 arrays with every 2X2 subblock containing exactly one value repeat, and new values 0..7 introduced in row major order.

52, 10677, 7700397, 9700576474, 16484968944748, 31813625228165210, 64398780661554524050, 132601740316897661044124, 274696694967972306834304958, 570286527927816153297022623334

Offset: 1

Author

R. H. Hardin Mar 10 2012

Keywords

• nonn

Comments

Column 5 of A209527

Examples

			Some solutions for n=5
..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..1..0..1..0
..1..2..1..2..1....1..2..1..2..1....1..2..1..2..3....0..2..2..0..2
..1..0..0..0..2....0..0..0..1..0....1..3..3..1..2....2..1..3..3..2
..3..1..4..1..1....3..1..2..2..1....4..4..5..1..4....4..4..1..0..0
..0..0..4..5..0....3..2..0..3..2....5..6..6..5..1....0..2..1..5..1
		

Links

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