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Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
1

%I #4 Mar 13 2018 07:44:21

%S 32,2048,89472,4369224,210678360,10189867088,492720806016,

%T 23826737802264,1152195114983576,55717051451646784,

%U 2694326325041302348,130290356568278014868,6300490353201433009024,304674726080105302263808

%N Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 6 of A300804.

%H R. H. Hardin, <a href="/A300802/b300802.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A300802/a300802.txt">Empirical recurrence of order 85</a>

%F Empirical recurrence of order 85 (see link above)

%e Some solutions for n=5

%e ..0..0..1..1..0..0. .0..0..1..0..0..1. .0..0..1..1..1..0. .0..0..1..0..0..1

%e ..0..0..1..0..1..0. .0..0..1..0..0..0. .0..0..1..1..0..1. .0..0..1..0..1..0

%e ..0..0..1..1..1..1. .0..0..1..1..1..1. .0..0..1..0..1..0. .0..0..1..1..0..0

%e ..0..0..1..0..0..1. .0..0..1..0..0..0. .0..0..1..0..0..1. .0..0..1..0..1..0

%e ..0..0..1..0..1..0. .0..1..0..1..1..1. .0..1..0..1..0..0. .0..1..1..1..0..1

%Y Cf. A300804.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 13 2018