%I #4 Jan 25 2017 10:37:56
%S 11,110,1283,16198,203276,2563481,32354824,408458506,5156857179,
%T 65107404580,822011501060,10378295092963,131031076361292,
%U 1654331920396230,20886756502623605,263705605573971334
%N Number of nX4 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
%C Column 4 of A281605.
%H R. H. Hardin, <a href="/A281601/b281601.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 13*a(n-1) +3*a(n-2) -87*a(n-3) -125*a(n-4) -116*a(n-5) +69*a(n-6) +522*a(n-7) -148*a(n-8) -199*a(n-9) +690*a(n-10) -105*a(n-11) -265*a(n-12) -155*a(n-13) -84*a(n-14) -23*a(n-15) -13*a(n-16) for n>18
%e Some solutions for n=4
%e ..0..1..1..0. .0..1..0..1. .0..1..2..1. .0..1..0..1. .0..0..1..0
%e ..2..0..2..0. .0..1..0..2. .2..1..2..1. .2..1..0..2. .1..2..1..0
%e ..2..1..1..0. .0..2..1..0. .0..1..2..1. .0..1..0..1. .1..2..1..2
%e ..0..0..2..0. .1..2..1..2. .0..1..2..1. .0..1..0..1. .1..0..1..2
%Y Cf. A281605.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 25 2017
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