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A300970 Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Mar 17 2018 07:20:40

%S 3,129,2956,63565,1396701,30679527,673550354,14787165263,324641851765,

%T 7127272856567,156473999523206,3435270952316792,75418833706815251,

%U 1655764729214342795,36351090355926756961,798061310736461485021

%N Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 5 of A300973.

%H R. H. Hardin, <a href="/A300970/b300970.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300973.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 17 2018

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)