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%I #4 Feb 06 2018 13:20:27
%S 2,52,223,1024,5360,28374,144040,743640,3857242,19925599,102977350,
%T 532709362,2754912665,14246433006,73680910336,381067786735,
%U 1970816457786,10192855468940,52716573704127,272645676769182,1410103205704342
%N Number of nX4 0..1 arrays with every element equal to 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
%C Column 4 of A299307.
%H R. H. Hardin, <a href="/A299303/b299303.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A299303/a299303.txt">Empirical recurrence of order 68</a>
%F Empirical recurrence of order 68 (see link above)
%e Some solutions for n=5
%e ..0..0..1..1. .0..0..0..0. .0..0..0..1. .0..1..1..1. .0..0..1..0
%e ..0..0..1..1. .0..1..1..1. .1..0..1..1. .0..1..1..1. .1..1..0..1
%e ..0..0..0..0. .0..1..1..1. .0..1..0..0. .1..0..1..1. .1..1..1..1
%e ..0..0..0..1. .1..0..1..1. .1..0..0..0. .1..0..1..1. .1..1..1..0
%e ..1..1..1..0. .1..0..1..1. .1..0..0..0. .1..0..1..1. .0..0..0..1
%Y Cf. A299307.
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 06 2018
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