A273965 Number of nX2 0..3 arrays with no three equal values forming an isosceles triangle, and new values introduced in 0..3 order.

2, 10, 105, 1264, 13045, 136063, 1273961, 11936399, 95697853, 800561388, 5824237329, 42821430074, 277065391875

Offset: 1

Author

R. H. Hardin, Jun 05 2016

Keywords

• nonn

Comments

Column 2 of A273968.

Examples

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

Crossrefs

Cf. A273968.