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A302819 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1

%I

%S 64,960,7900,170262,3252934,58122740,1135257814,22294687742,

%T 427140472935,8302040868397,161951214852377,3140738898721896,

%U 61036498168516642,1187741080719613728,23082916011414934514,448705985586604686474

%N Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Column 7 of A302820.

%H R. H. Hardin, <a href="/A302819/b302819.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A302820.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 13 2018

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Last modified November 27 05:55 EST 2021. Contains 349363 sequences. (Running on oeis4.)