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A300809 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Mar 13 2018 07:53:29

%S 32,1490,34836,872495,22066384,559634028,14189038853,359766695966,

%T 9121562946307,231272831721241,5863793161067426,148673270791278610,

%U 3769528495204343311,95574315400763857215,2423234009392860653804

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

%C Column 6 of A300811.

%H R. H. Hardin, <a href="/A300809/b300809.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300811.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 13 2018

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Last modified May 12 08:55 EDT 2024. Contains 372432 sequences. (Running on oeis4.)