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A214144 Number of 0..4 colorings of a 3X(n+1) array circular in the n+1 direction with new values 0..4 introduced in row major order 1

%I #4 Jul 05 2012 06:22:41

%S 33,514,28278,1101051,47730973,2000093424,84746307320,3577656763765,

%T 151219261926083,6389075487200098,269978080214894342,

%U 11407722800807664903,482032317577423439601,20368126430994060884676

%N Number of 0..4 colorings of a 3X(n+1) array circular in the n+1 direction with new values 0..4 introduced in row major order

%C Row 3 of A214141

%H R. H. Hardin, <a href="/A214144/b214144.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 29*a(n-1) +667*a(n-2) -3517*a(n-3) -48855*a(n-4) +260073*a(n-5) +877261*a(n-6) -6916959*a(n-7) +3304148*a(n-8) +50505862*a(n-9) -103934388*a(n-10) +3498864*a(n-11) +137456208*a(n-12) -66186464*a(n-13) -37655040*a(n-14) +18842112*a(n-15)

%e Some solutions for n=4

%e ..0..1..0..1..2....0..1..0..1..2....0..1..2..0..1....0..1..2..3..4

%e ..2..3..4..2..3....2..3..1..2..3....1..2..0..3..2....2..4..1..0..3

%e ..3..4..2..3..2....4..0..4..0..1....2..0..1..2..0....3..1..2..3..4

%K nonn

%O 1,1

%A _R. H. Hardin_ Jul 05 2012

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Last modified April 24 08:48 EDT 2024. Contains 371930 sequences. (Running on oeis4.)