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A306133 Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero. 1

%I #4 Jun 22 2018 07:43:01

%S 1,82,240,2922,31843,267988,2889140,29281552,289967701,2972720307,

%T 30091767321,304406786632,3091992959174,31341774355331,

%U 317778000686626,3223336785281965,32685713823934867,331470578285123739

%N Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

%C Column 5 of A306136.

%H R. H. Hardin, <a href="/A306133/b306133.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A306136.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jun 22 2018

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Last modified April 24 06:14 EDT 2024. Contains 371918 sequences. (Running on oeis4.)