A198624 - OEIS

%I #4 Mar 31 2012 12:36:34

%S 3,488,98330,38208073,18048413395,9630271257812,5291151764465150,

%T 2951559987278650909,1652290176778975311860

%N Number of nX5 0..5 arrays with values 0..5 introduced in row major order and each element equal to at least one horizontal or vertical neighbor

%C Column 5 of A198627

%e Some solutions for n=4

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

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

%e ..0..2..2..0..3....0..2..2..3..2....0..3..2..1..0....0..0..0..1..3

%e ..0..0..2..0..3....0..0..2..3..2....0..3..1..1..0....0..0..4..4..3

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 27 2011