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A280670 Number of nX5 0..2 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.

%I A280670 #4 Jan 07 2017 08:05:00
%S A280670 30,1917,119440,7533245,474736149,29920114246,1885698283255,
%T A280670 118845116023725,7490149091439288,472062591963218273,
%U A280670 29751489321018113345,1875071509361980884750,118175366862571989996619
%N A280670 Number of nX5 0..2 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
%C A280670 Column 5 of A280673.
%H A280670 R. H. Hardin, <a href="/A280670/b280670.txt">Table of n, a(n) for n = 1..210</a>
%F A280670 Empirical: a(n) = 59*a(n-1) +268*a(n-2) -869*a(n-3) -2331*a(n-4) +3754*a(n-5) -8240*a(n-6) -88*a(n-7) -3472*a(n-8) for n>9
%e A280670 Some solutions for n=3
%e A280670 ..0..1..2..1..2. .0..1..2..1..1. .0..0..1..2..0. .0..1..2..0..2
%e A280670 ..0..0..2..0..2. .2..1..0..0..2. .2..2..0..2..2. .0..1..0..1..1
%e A280670 ..2..0..2..0..0. .1..2..2..1..0. .0..2..0..0..1. .1..2..0..0..2
%Y A280670 Cf. A280673.
%K A280670 nonn
%O A280670 1,1
%A A280670 _R. H. Hardin_, Jan 07 2017