A268206 Number of 2Xn 0..n arrays with every repeated value in every row and column greater than the previous repeated value.

4, 81, 3600, 324900, 48441600, 10817248036, 3377332413504, 1404654302923524, 750581746192664100, 501056831514160707984, 408622467650013146382336, 399732806541644129265761569, 461983489514281294192077209856

Offset: 1

Author

R. H. Hardin, Jan 28 2016

Keywords

• nonn

Comments

Row 2 of A268204.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..26

Crossrefs

Cf. A268204.