%I #5 Mar 31 2012 12:36:56
%S 1,1,1,1,7,1,1,49,49,1,1,252,2422,252,1,1,1519,65653,65653,1519,1,1,
%T 11585,1644254,7951793,1644254,11585,1,1,86156,50848495,781413998,
%U 781413998,50848495,86156,1,1,606221,1678700434,87523201775,307215779816
%N T(n,k)=Number of nXk 0..6 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors
%C Table starts
%C .1......1...........1..............1...............1...............1
%C .1......7..........49............252............1519...........11585
%C .1.....49........2422..........65653.........1644254........50848495
%C .1....252.......65653........7951793.......781413998.....87523201775
%C .1...1519.....1644254......781413998....307215779816.133980449920831
%C .1..11585....50848495....87523201775.133980449920831
%C .1..86156..1678700434.10639041328647
%C .1.606221.53072796241
%H R. H. Hardin, <a href="/A203389/b203389.txt">Table of n, a(n) for n = 1..60</a>
%e Some solutions for n=4 k=3
%e ..0..4..4....1..2..2....0..5..5....2..2..0....6..6..5....4..4..0....2..3..3
%e ..2..4..4....5..5..2....3..5..5....2..3..3....6..6..5....4..4..0....2..3..3
%e ..3..6..6....5..5..5....4..4..4....4..4..3....5..2..5....2..3..3....4..4..0
%e ..3..6..6....4..5..5....4..4..1....4..4..0....5..5..5....0..3..3....4..4..0
%K nonn,tabl
%O 1,5
%A _R. H. Hardin_ Jan 01 2012