A273967 Number of nX4 0..3 arrays with no three equal values forming an isosceles triangle, and new values introduced in 0..3 order.

15, 1264, 24587, 49534, 36817, 40569, 36570, 90627, 89429, 182457, 100921, 179282, 121279, 301658, 206783, 445549, 325633, 652935, 526099, 1011751, 897383, 1627068, 1524277, 2600188, 2533039, 4097718, 4108747, 6343186, 6487741, 9626296, 9987409

Offset: 1

Author

R. H. Hardin, Jun 05 2016

Keywords

• nonn

Comments

Column 4 of A273968.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..60

Crossrefs

Cf. A273968.