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A229367 Number of nX3 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 antidiagonally 1

%I

%S 22,184,1610,13937,122497,1067299,9346997,81633583,713982837,

%T 6240061504,54556988152,476904755485,4169201095109,36446367090562,

%U 318614423423484,2785298770230012,24348966185185668,212857075051476381

%N Number of nX3 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 antidiagonally

%C Column 3 of A229372

%H R. H. Hardin, <a href="/A229367/b229367.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 2*a(n-1) +61*a(n-2) +48*a(n-3) -586*a(n-4) -158*a(n-5) +2199*a(n-6) -1140*a(n-7) -1304*a(n-8) +440*a(n-9) +416*a(n-10) +64*a(n-11)

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Sep 21 2013

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Last modified January 27 21:53 EST 2020. Contains 331300 sequences. (Running on oeis4.)