%I #5 Mar 31 2012 12:37:06
%S 0,6,30,277,2370,22297,214724,2133784,21632020,223143400,2333651994,
%T 24689732388,263770658256,2841616524516,30835061022020,
%U 336721385300276,3697585562072924,40805356360923728,452314009660461816
%N Number of length n+1 nonnegative integer arrays starting and ending with 0 with adjacent elements unequal but differing by no more than 6
%C Column 6 of A205341
%H R. H. Hardin, <a href="/A205339/b205339.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
%e ..3....1....5....3....6....2....5....2....3....5....5....3....3....3....3....5
%e ..1....3....4....1....4....5....8....4....5....2....9....2....0....7....1....4
%e ..5....9....8....0....2....0....7....3....0....3....8....7....6...10....4....9
%e ..2....6....5....2....3....4....6....5....2....5....4....5....1....5....5....5
%e ..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 26 2012