cp's OEIS Frontend

A228739 Number of arrays of the median of three adjacent elements of some length n+2 0..7 array.

%I A228739 #11 Sep 02 2013 12:22:49
%S A228739 8,64,512,3312,17088,84288,410828,2037214,10282648,52493640,269103944,
%T A228739 1379300658,7060313768,36093818956,184394586102,941828553348,
%U A228739 4810728325582,24575097951832,125549549795310,641435496947444
%N A228739 Number of arrays of the median of three adjacent elements of some length n+2 0..7 array.
%C A228739 Column 7 of A228740
%H A228739 R. H. Hardin, <a href="/A228739/b228739.txt">Table of n, a(n) for n = 1..69</a>
%e A228739 Some solutions for n=4
%e A228739 ..2..1..7..5..3..1..4..4..1..5..5..4..4..6..2..5
%e A228739 ..2..1..4..5..7..0..3..6..1..1..1..4..2..4..2..1
%e A228739 ..3..1..1..4..3..3..5..3..1..3..1..5..6..0..1..6
%e A228739 ..3..3..3..5..1..3..3..5..5..3..2..4..6..2..2..3
%K A228739 nonn
%O A228739 1,1
%A A228739 _R. H. Hardin_ Sep 01 2013