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A234192 Number of (n+2)X(2+2) 0..3 arrays with no increasing sequence of length 3 horizontally, diagonally downwards or antidiagonally downwards 1

%I #4 Dec 21 2013 00:41:46

%S 8978872,1577067369,272785548513,47114152181148,8128987583933281,

%T 1402354682135036305,241907393209732474040,41728691066349914499057,

%U 7198106124765939948074277,1241655935620049816080983368

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

%C Column 2 of A234196

%H R. H. Hardin, <a href="/A234192/b234192.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 21 2013

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Last modified March 29 07:27 EDT 2024. Contains 371265 sequences. (Running on oeis4.)