A276297 Number of nX6 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,1) or (0,-1) and new values introduced in order 0..2.

16, 324, 2765, 33461, 408105, 4988145, 61239977, 752660245, 9254592049, 113817204341, 1399867249821, 17217717400933, 211770912156897, 2604690694931325, 32036472371696501, 394032445053865405

Offset: 1

Author

R. H. Hardin, Aug 28 2016

Keywords

• nonn

Comments

Column 6 of A276299.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 70

Crossrefs

Cf. A276299.

Formula

Empirical recurrence of order 70 (see link above)