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A207203 Number of nX3 0..2 arrays avoiding the pattern z-1 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal 1

%I #5 Mar 31 2012 12:37:16

%S 25,625,11047,193260,3345883,58023139,1009600274,17573182050,

%T 306058145014,5330310582515,92834551981258,1616822219788212,

%U 28158656967348234,490411967797286692,8541018731669475765

%N Number of nX3 0..2 arrays avoiding the pattern z-1 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal

%C Column 3 of A207208

%H R. H. Hardin, <a href="/A207203/b207203.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 15 2012

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Last modified April 25 11:06 EDT 2024. Contains 371967 sequences. (Running on oeis4.)