A275129 Number of nX6 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,0) or (-1,1) and new values introduced in order 0..2.

122, 1024, 2607, 11092, 71576, 473185, 3146574, 20970214, 139845553, 930732169, 6190918966, 41214051338, 274484938098, 1827596183195, 12167228578454, 81014307245606, 539449424460354, 3591778777900364, 23914435700214624

Offset: 1

Author

R. H. Hardin, Jul 17 2016

Keywords

• nonn

Comments

Column 6 of A275131.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 67

Crossrefs

Cf. A275131.

Formula

Empirical recurrence of order 67 (see link above)