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A304478 Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero. 1

%I #4 May 13 2018 10:48:23

%S 64,432,428,2325,8058,35462,132348,573938,2341508,9662652,39282514,

%T 162495617,669930287,2768921759,11414416244,47122544293,194594846556,

%U 804284802952,3323226448845,13732491912928,56753164938552

%N Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.

%C Column 7 of A304479.

%H R. H. Hardin, <a href="/A304478/b304478.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A304479.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 13 2018

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Last modified March 28 11:59 EDT 2024. Contains 371254 sequences. (Running on oeis4.)