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A300611 Number of nX7 0..1 arrays with every element equal to 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Mar 09 2018 17:34:57

%S 8,981,39330,1387896,48279880,1693172810,59556673490,2093683166397,

%T 73570793306416,2585342220762941,90853207535884062,

%U 3192739038133777424,112198275062067123972,3942836730456260003891,138557934963625655483146

%N Number of nX7 0..1 arrays with every element equal to 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 7 of A300612.

%H R. H. Hardin, <a href="/A300611/b300611.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300612.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 09 2018

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Last modified April 19 23:15 EDT 2024. Contains 371798 sequences. (Running on oeis4.)