A275355 Number of 5Xn 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,1) or (-1,-2) and new values introduced in order 0..2.

41, 864, 4100, 31536, 266116, 2292520, 20917472, 194637328, 1825423200, 17213744212, 162695907792, 1539478009624, 14577399623268, 138078974585332, 1308134484454856, 12394068418883164, 117434501112468568

Offset: 1

Author

R. H. Hardin, Jul 24 2016

Keywords

• nonn

Comments

Row 5 of A275352.

Examples

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

Links

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

Crossrefs

Cf. A275352.