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A302162 Number of nX7 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%I A302162 #4 Apr 02 2018 14:48:40
%S A302162 21,185,56,206,603,1247,2853,6870,15489,35924,84962,195967,453837,
%T A302162 1061993,2464882,5719363,13329296,30988342,71989905,167525699,
%U A302162 389592291,905597726,2106327411,4898465680,11389209332,26486000403,61593726193
%N A302162 Number of nX7 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
%C A302162 Column 7 of A302163.
%H A302162 R. H. Hardin, <a href="/A302162/b302162.txt">Table of n, a(n) for n = 1..210</a>
%F A302162 Empirical: a(n) = a(n-1) +a(n-2) +11*a(n-3) -7*a(n-4) -7*a(n-5) -41*a(n-6) +26*a(n-7) +17*a(n-8) +74*a(n-9) -59*a(n-10) -19*a(n-11) -73*a(n-12) +82*a(n-13) +11*a(n-14) +44*a(n-15) -69*a(n-16) -5*a(n-17) -23*a(n-18) +34*a(n-19) +3*a(n-20) +14*a(n-21) -9*a(n-22) -a(n-23) -6*a(n-24) +a(n-25) +a(n-27) for n>39
%e A302162 Some solutions for n=5
%e A302162 ..0..0..1..1..0..1..0. .0..1..0..1..1..0..0. .0..1..1..0..0..1..0
%e A302162 ..0..1..0..1..0..1..1. .0..1..0..1..0..1..0. .0..1..0..1..0..1..0
%e A302162 ..0..1..0..1..0..1..0. .0..1..0..1..0..1..0. .0..1..0..1..0..1..0
%e A302162 ..0..1..0..1..0..1..0. .0..1..0..1..0..1..0. .0..1..0..1..0..1..1
%e A302162 ..0..1..0..0..1..1..0. .0..1..0..0..1..1..0. .1..0..0..1..0..1..0
%Y A302162 Cf. A302163.
%K A302162 nonn
%O A302162 1,1
%A A302162 _R. H. Hardin_, Apr 02 2018