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%I #5 Nov 16 2016 12:30:07
%S 3,9,25,75,219,657,1947,5737,16835,50505,150269,445611,1318207,
%T 3954621,11801871,35144759,104488339,310274387,930823161,2782086765,
%U 8302860633,24751434187,73723434683,221170304049,661776939649,1978053826173
%N Number of length n 0..2 arrays with each partial sum starting from the beginning no more than two standard deviations from its mean
%C Column 2 of A244832
%H R. H. Hardin, <a href="/A244826/b244826.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=10
%e ..1....1....2....0....0....0....1....1....0....0....1....1....0....1....1....0
%e ..0....1....1....0....0....0....0....0....1....0....2....2....2....0....2....1
%e ..2....1....2....2....2....2....0....0....0....2....1....0....0....1....0....1
%e ..1....0....1....0....0....0....1....2....0....1....1....0....2....2....0....0
%e ..0....0....2....2....2....0....0....0....1....2....1....0....0....0....0....1
%e ..0....0....0....2....0....2....2....2....0....1....1....1....0....2....1....1
%e ..1....0....2....2....1....2....2....2....2....2....0....0....0....1....2....1
%e ..0....1....2....1....0....2....1....0....2....2....1....2....2....1....0....1
%e ..0....2....1....1....0....1....1....2....0....1....0....2....2....0....0....2
%e ..1....0....2....2....1....2....2....0....1....1....2....0....1....0....0....1
%K nonn
%O 1,1
%A _R. H. Hardin_, Jul 06 2014
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