A275398 - OEIS

A275398

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

%I #6 Jan 20 2024 17:56:27

%S 41,1944,2344,5758,14884,65045,283169,1266905,5656712,25396322,

%T 114023115,510915912,2291881500,10263922489,46052282280,206639693889,

%U 927930559927,4167565838387,18709473097471,83993025347677,376914801778863

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

%C Column 5 of A275401.

%H R. H. Hardin, <a href="/A275398/b275398.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%Y Cf. A275401.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 26 2016