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A301359 Number of nX6 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Mar 19 2018 09:56:06

%S 5,90,256,1167,6279,44148,317019,2249565,15884635,112575442,799900089,

%T 5694840185,40579592285,289239447884,2061827748721,14698143384886,

%U 104780785903633,746986736934242,5325420761444547,37966535248953654

%N Number of nX6 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 6 of A301361.

%H R. H. Hardin, <a href="/A301359/b301359.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A301361.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 19 2018

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Last modified May 4 21:32 EDT 2024. Contains 372257 sequences. (Running on oeis4.)