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%I #7 Jan 15 2017 13:09:46
%S 19,147,1041,10231,76355,639129,5262685,45272931,382928623,3284527183,
%T 28183944013,243625884229,2108556673765,18314858156217,
%U 159384230179203,1390406836401831,12149636212862815,106349025711686091
%N Number of (n+1) X 2 0..2 arrays with equal numbers of 2 X 2 subblocks with sum over 4 and with sum under 4.
%C Column 1 of A183748.
%H R. H. Hardin, <a href="/A183740/b183740.txt">Table of n, a(n) for n = 1..200</a>
%e Some solutions for 3 X 2:
%e ..0..0....2..2....1..1....2..2....0..2....2..2....1..0....2..2....1..0....2..0
%e ..0..2....1..1....2..0....1..0....1..1....0..1....0..2....0..2....1..2....2..1
%e ..2..1....0..1....1..1....1..1....1..1....1..1....2..2....1..0....0..1....0..0
%e ...
%e ...M.......P.......E.......P.......E.......P.......M.......P.......E.......P...
%e ...P.......M.......E.......M.......E.......M.......P.......M.......E.......M...
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 06 2011
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