login
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.
1

%I #4 Jul 24 2016 10:07:21

%S 41,864,4100,31536,266116,2292520,20917472,194637328,1825423200,

%T 17213744212,162695907792,1539478009624,14577399623268,

%U 138078974585332,1308134484454856,12394068418883164,117434501112468568

%N 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.

%C Row 5 of A275352.

%H R. H. Hardin, <a href="/A275355/b275355.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..0..1..0..1. .0..1..0..2. .0..1..0..2. .0..1..0..1. .0..1..0..1

%e ..2..1..1..2. .1..0..1..0. .2..0..2..0. .1..0..1..2. .2..0..2..0

%e ..2..2..0..2. .0..2..0..2. .0..2..0..2. .0..2..2..1. .0..2..0..2

%e ..0..0..0..0. .2..0..2..0. .2..1..2..1. .2..2..1..0. .2..1..1..1

%e ..1..1..1..1. .0..1..0..1. .1..2..0..2. .0..1..0..0. .1..2..1..2

%Y Cf. A275352.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 24 2016