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Number of arrays of the median of three adjacent elements of some length n+2 0..6 array.
1

%I #12 Sep 02 2013 11:58:09

%S 7,49,343,1981,9191,41083,181885,819099,3749921,17338503,80437853,

%T 373008019,1727505765,7991536851,36949011409,170810543525,

%U 789678726959,3651141596711,16882484843753,78065155382933,360977446471839

%N Number of arrays of the median of three adjacent elements of some length n+2 0..6 array.

%C Column 6 of A228740.

%H R. H. Hardin, <a href="/A228738/b228738.txt">Table of n, a(n) for n = 1..81</a>

%e Some solutions for n=4

%e ..0..6..3..6..1..5..0..3..5..6..1..4..6..2..5..3

%e ..1..4..5..2..2..0..2..0..5..6..0..2..5..6..5..6

%e ..3..1..0..4..1..6..0..0..2..5..0..6..2..3..1..3

%e ..4..3..3..4..2..2..4..6..0..4..0..2..4..4..0..4

%K nonn

%O 1,1

%A _R. H. Hardin_, Sep 01 2013