A203336 - OEIS

%I #4 Mar 31 2012 12:36:56

%S 1,5545,12872510,12492984999,11409771585523,11867803667695158,

%T 12521002071185162318

%N Number of nX6 0..5 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors

%C Column 6 of A203338

%e Some solutions for n=4

%e ..3..3..1..3..3..0....1..5..5..0..5..5....3..3..5..5..2..1....4..4..4..1..0..0

%e ..5..5..0..4..5..5....4..5..5..5..5..5....3..5..5..5..3..1....5..5..4..1..2..2

%e ..5..5..2..4..5..5....4..0..4..5..3..5....0..5..1..5..3..3....5..5..5..2..4..4

%e ..0..2..2..0..5..5....4..4..4..5..5..5....0..5..5..5..3..3....4..5..5..1..4..4

%K nonn

%O 1,2

%A _R. H. Hardin_ Dec 31 2011