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A229634 Number of defective 3-colorings of an nX5 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order 1

%I

%S 12,488,6031,77620,960325,11485716,133784624,1525870912,17108056051,

%T 189113977298,2065634425127,22332806237194,239326746885334,

%U 2544956244990312,26878587507519977,282161860575964390

%N Number of defective 3-colorings of an nX5 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order

%C Column 5 of A229637

%H R. H. Hardin, <a href="/A229634/b229634.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 42*a(n-1) -723*a(n-2) +6569*a(n-3) -33687*a(n-4) +94839*a(n-5) -116010*a(n-6) -55215*a(n-7) +305043*a(n-8) -230994*a(n-9) -118011*a(n-10) +243513*a(n-11) -84933*a(n-12) -40719*a(n-13) +42804*a(n-14) -14887*a(n-15) +2598*a(n-16) -228*a(n-17) +8*a(n-18) for n>20

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Sep 27 2013

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Last modified February 17 15:16 EST 2020. Contains 331998 sequences. (Running on oeis4.)