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A303323 Number of nX6 0..1 arrays with every element equal to 0, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Apr 21 2018 13:12:06

%S 1,32,1,10,25,56,136,531,1035,3668,11020,29763,88919,263974,759319,

%T 2234940,6528470,19011183,55808342,163149056,476147024,1393878718,

%U 4076631347,11916304345,34854245923,101919861889,298028780792

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

%C Column 6 of A303325.

%H R. H. Hardin, <a href="/A303323/b303323.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A303325.

%K nonn

%O 1,2

%A _R. H. Hardin_, Apr 21 2018

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Last modified April 16 12:05 EDT 2024. Contains 371711 sequences. (Running on oeis4.)