A268105 Number of 2Xn 0..n arrays with every repeated value in every row and column greater than or equal to the previous repeated value.

4, 81, 4096, 378225, 56791296, 12650850576, 3926389806144, 1621309443347169, 859957083064464100, 569966660957291549809, 461690884178405990127504, 448823671401604409584451856, 515728792901852626366779599104

Offset: 1

Author

R. H. Hardin, Jan 26 2016

Keywords

• nonn

Comments

Row 2 of A268103.

Examples

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

Links

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

Crossrefs

Cf. A268103.