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A303408 Number of nX6 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1

%I

%S 5,45,290,2079,29411,236326,2158662,27002794,250400003,2506366395,

%T 27764556264,275534182736,2826711225139,29909224594535,

%U 304574137026271,3144849018260079,32756776290370113,336779681669267253

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

%C Column 6 of A303410.

%H R. H. Hardin, <a href="/A303408/b303408.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A303410.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 23 2018

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Last modified September 18 19:30 EDT 2021. Contains 347534 sequences. (Running on oeis4.)