|
%I #4 Mar 13 2017 09:52:55
%S 0,0,403,11886,165152,1712052,15351085,126810474,989755263,7421134282,
%T 53972500634,383258656118,2669593728208,18301919622500,
%U 123810569805676,828107771754630,5484831030514008,36019172324299540,234771330638001725
%N Number of nX4 0..1 arrays with no element unequal to more than four of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
%C Column 4 of A283666.
%H R. H. Hardin, <a href="/A283662/b283662.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A283662/a283662.txt">Empirical recurrence of order 84</a>
%F Empirical recurrence of order 84 (see link above)
%e Some solutions for n=4
%e ..0..0..1..0. .0..1..1..0. .0..0..0..0. .0..1..0..0. .0..1..0..1
%e ..0..1..0..0. .1..1..0..0. .0..1..1..0. .0..1..0..0. .0..1..1..1
%e ..1..0..1..0. .1..1..0..1. .0..0..0..1. .0..1..1..1. .1..0..0..0
%e ..0..0..1..0. .1..1..1..0. .0..0..1..0. .1..0..1..1. .1..0..0..1
%Y Cf. A283666.
%K nonn
%O 1,3
%A _R. H. Hardin_, Mar 13 2017
| 