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 A233702 Number of (n+2)X(2+2) 0..3 arrays with no increasing sequence of length 3 horizontally, vertically, diagonally downwards or antidiagonally downwards 1

%I

%S 7442986,1062275284,144297443044,19467107789537,2609997970924906,

%T 349509905164819640,46766203338147707533,6256380820427911740163,

%U 836891438568071386347572,111944533657293884018452690

%N Number of (n+2)X(2+2) 0..3 arrays with no increasing sequence of length 3 horizontally, vertically, diagonally downwards or antidiagonally downwards

%C Column 2 of A233705

%H R. H. Hardin, <a href="/A233702/b233702.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

%e ..0..0..2..1....0..1..0..0....0..1..1..1....0..1..0..1....0..0..1..0

%e ..0..0..1..1....1..0..0..0....1..1..1..2....1..3..3..0....0..3..0..1

%e ..2..0..0..1....1..2..2..0....1..2..1..2....0..0..3..1....1..1..2..0

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 15 2013

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Last modified December 6 00:51 EST 2021. Contains 349558 sequences. (Running on oeis4.)