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A184374 1/3 the number of (n+1)X8 0..2 arrays with every 2X2 subblock having at least two equal elements connected horizontally or vertically.

%I A184374 #7 Jul 22 2025 09:31:56
%S A184374 3046491,5040682279,8177524177277,13299774554091575,
%T A184374 21624059735461675335,35159890626610196979641,
%U A184374 57168347029530545962203193,92953139774330929595592449437,151137575901032303453595440035363
%N A184374 1/3 the number of (n+1)X8 0..2 arrays with every 2X2 subblock having at least two equal elements connected horizontally or vertically.
%C A184374 Column 7 of A184376
%H A184374 R. H. Hardin, <a href="/A184374/b184374.txt">Table of n, a(n) for n = 1..84</a>
%e A184374 Some solutions for 3X8 with a(1,1)=0
%e A184374 ..0..0..0..0..1..1..2..1....0..0..0..0..0..0..1..0....0..0..0..0..2..0..2..1
%e A184374 ..0..0..0..0..0..1..2..0....0..0..0..0..2..2..2..0....0..0..0..0..1..1..1..1
%e A184374 ..0..0..0..0..0..0..0..0....0..0..0..0..2..0..1..1....0..0..0..0..0..0..0..2
%K A184374 nonn
%O A184374 1,1
%A A184374 _R. H. Hardin_ Jan 12 2011