%I
%S 1,4,5,14,24,48,100,280,608,1094,2558,6656,14475,29638,69174,170043,
%T 384938,830598,1910747,4608078,10600467,23514477,54265809,129118292,
%U 298774740,676277578,1564120363,3687870415,8572421420,19643806169
%N Number of 4..4 arrays x(0..n1) of n elements with zero sum and no two consecutive declines, no adjacent equal elements, and no element more than one greater than the previous (random base sawtooth pattern)
%C Column 4 of A200181
%H R. H. Hardin, <a href="/A200177/b200177.txt">Table of n, a(n) for n = 1..200</a>
%e Some solutions for n=6
%e ..2....0....1....1....3....0....4....3....3....0....4....2....0....2....1....2
%e ..3....1....2....2...1...2....2....4....0....1....3....0....1...2....2....1
%e ..4....2....3...1....0...1....3...2....1....2....4....1...1...1....3....2
%e .3...2...2....0....1....0...4...1...1...1...4....2....0....0...3...1
%e .2...1...1....1...2....1...3....0....0....0...3...3....1....1...2....0
%e .4....0...3...3...1....2...2...4...3...2...4...2...1....0...1...4
%K nonn
%O 1,2
%A _R. H. Hardin_ Nov 13 2011
