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A303467 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Apr 24 2018 10:42:12

%S 32,1405,29009,692636,17247543,427097893,10589284528,263136262937,

%T 6538180319944,162474283068763,4038093885728800,100363335141370610,

%U 2494483012817443067,61999957389103505229,1541003358426712853022

%N Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Column 6 of A303469.

%H R. H. Hardin, <a href="/A303467/b303467.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A303469.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 24 2018

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Last modified April 24 15:57 EDT 2024. Contains 371961 sequences. (Running on oeis4.)