A280959 Number of nX6 0..2 arrays with no element equal to more than one of its horizontal, vertical and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.

82, 4850, 63085, 1121528, 20029500, 346289502, 6052621154, 105777297118, 1846875100200, 32253949107668, 563278827019060, 9836989060923111, 171791531487108414, 3000138481060751984, 52393917402743354484

Offset: 1

Author

R. H. Hardin, Jan 11 2017

Keywords

• nonn

Comments

Column 6 of A280961.

Examples

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

Links

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

Crossrefs

Cf. A280961.