A222999 - OEIS

%I #4 Mar 11 2013 10:07:30

%S 24,1814,125907,18420655,1388632315,213770689590,16612891441497,

%T 2613783409317401,206758595651028725,32954855551774604713,

%U 2636001088339869354467,423706560922870576914860

%N Number of nX5 0..2 arrays with no more than floor(nX5/2) elements equal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order

%C Column 5 of A223000

%H R. H. Hardin, <a href="/A222999/b222999.txt">Table of n, a(n) for n = 1..24</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 11 2013