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A301530 Number of nX7 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1

%I

%S 1,304,7640,339956,14890200,681538595,31363814530,1449439465725,

%T 67069319310675,3105774311254509,143847525643175638,

%U 6663123840652391073,308649484519717755352,14297467051864049996062,662299666745948218632443

%N Number of nX7 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 7 of A301531.

%H R. H. Hardin, <a href="/A301530/b301530.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A301531.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 23 2018

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Last modified March 26 19:25 EDT 2023. Contains 361552 sequences. (Running on oeis4.)