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A303086 Number of 4Xn 0..1 arrays with every element equal to 0, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1

%I

%S 8,3,112,90,1455,3667,33152,157838,1161232,7100035,49678916,329669849,

%T 2281641594,15540614996,107301648292,737154651791,5087197252026,

%U 35051028229325,241871543186476,1668193998276026,11511498465288360

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

%C Row 4 of A303084.

%H R. H. Hardin, <a href="/A303086/b303086.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A303086/a303086.txt">Empirical recurrence of order 67</a>

%F Empirical recurrence of order 67 (see link above)

%e Some solutions for n=5

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

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

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

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

%Y Cf. A303084.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 18 2018

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Last modified January 20 01:18 EST 2022. Contains 350467 sequences. (Running on oeis4.)