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A204653 Number of (n+2)X4 0..3 arrays with every 3x3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..3 introduced in row major order 1

%I #5 Mar 31 2012 12:37:02

%S 162622,17432664,2025234324,191371916425,19644326343062,

%T 2042453825437207,206574860386041709,21111641820895019840,

%U 2161881517804218484538,220578979155999911714342,22534813126999888206966172

%N Number of (n+2)X4 0..3 arrays with every 3x3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..3 introduced in row major order

%C Column 2 of A204655

%H R. H. Hardin, <a href="/A204653/b204653.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 17 2012

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Last modified May 6 13:11 EDT 2024. Contains 372293 sequences. (Running on oeis4.)