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A303418 Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%I A303418 #4 Apr 23 2018 10:52:44
%S A303418 16,512,15647,480953,14783632,454381369,13965759339,429248347970,
%T A303418 13193275586412,405505402581780,12463518290067297,383075754661780748,
%U A303418 11774125924935072114,361886753753857667867,11122865797202721389960
%N A303418 Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
%C A303418 Column 5 of A303421.
%H A303418 R. H. Hardin, <a href="/A303418/b303418.txt">Table of n, a(n) for n = 1..210</a>
%F A303418 Empirical: a(n) = 25*a(n-1) +145*a(n-2) +920*a(n-3) +1265*a(n-4) +1083*a(n-5) -13664*a(n-6) -14525*a(n-7) -1491*a(n-8) +33615*a(n-9) +17971*a(n-10) -5436*a(n-11) -22517*a(n-12) -1311*a(n-13) +444*a(n-14) +1917*a(n-15) -144*a(n-16)
%e A303418 Some solutions for n=5
%e A303418 ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
%e A303418 ..0..0..1..0..0. .0..0..0..1..1. .0..0..1..0..0. .0..0..0..1..0
%e A303418 ..0..1..0..1..0. .0..1..1..1..1. .1..0..0..1..1. .0..1..1..0..0
%e A303418 ..1..0..1..0..0. .1..0..1..0..1. .0..1..1..0..0. .0..0..1..0..0
%e A303418 ..0..1..0..1..1. .1..1..1..1..0. .0..0..0..0..0. .1..1..0..0..1
%Y A303418 Cf. A303421.
%K A303418 nonn
%O A303418 1,1
%A A303418 _R. H. Hardin_, Apr 23 2018