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A302210 Number of nX6 0..1 arrays with every element equal to 0, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Apr 03 2018 12:00:29

%S 1,65,22,80,281,1395,8756,43128,234170,1294490,7086959,38970702,

%T 215045749,1186180072,6546201483,36141119314,199545542832,

%U 1101845565725,6084429873748,33599148008180,185542430499264,1024617396401798

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

%C Column 6 of A302212.

%H R. H. Hardin, <a href="/A302210/b302210.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A302212.

%K nonn

%O 1,2

%A _R. H. Hardin_, Apr 03 2018

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)