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%I #4 Dec 16 2013 17:53:24
%S 11305216,1909001345,326595297792,55891166269184,9555756198221376,
%T 1634079144681671617,279374998997273713072,47766066271725605430992,
%U 8166548560135780862389268,1396240162443409942341921900
%N Number of (2+2)X(n+2) 0..3 arrays with no increasing sequence of length 3 horizontally or antidiagonally downwards
%C Row 2 of A233845
%H R. H. Hardin, <a href="/A233847/b233847.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=1
%e ..0..0..0....0..0..0....0..0..1....0..0..0....0..0..0....0..0..0....0..0..1
%e ..1..0..0....0..0..1....1..0..0....1..0..1....0..0..0....1..3..1....1..0..1
%e ..0..1..1....1..0..3....2..2..2....1..2..0....2..1..2....3..3..1....0..3..1
%e ..1..1..2....3..1..3....1..0..1....2..0..2....1..3..0....1..1..0....3..2..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 16 2013
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