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A252394 Number of (n+2)X(3+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum less than 4 1

%I #4 Dec 17 2014 09:18:33

%S 224346,9807871,454970982,19516646285,851022689884,37408598546844,

%T 1637298217327736,71675190624017977,3139889940063837080,

%U 137516081439046961836,6022451091771727200405,263767184952534766097247

%N Number of (n+2)X(3+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum less than 4

%C Column 3 of A252397

%H R. H. Hardin, <a href="/A252394/b252394.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 17 2014

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Last modified June 1 15:04 EDT 2023. Contains 363074 sequences. (Running on oeis4.)