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A269096 Number of nX7 0..3 arrays with some element plus some horizontally or vertically adjacent neighbor totalling three exactly once. 1

%I #4 Feb 19 2016 09:51:22

%S 5832,7375872,5795398368,3892946216856,2416707037884480,

%T 1430390977786967280,819944297332124826720,459338963193935894366016,

%U 252910225839761737259917296,137383600294764153686560207128

%N Number of nX7 0..3 arrays with some element plus some horizontally or vertically adjacent neighbor totalling three exactly once.

%C Column 7 of A269097.

%H R. H. Hardin, <a href="/A269096/b269096.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A269096/a269096.txt">Empirical recurrence of order 64</a>

%F Empirical recurrence of order 64 (see link above)

%e Some solutions for n=1

%e ..0..3..2..2..0..0..1. .1..1..0..3..1..1..1. .0..1..3..1..0..3..3

%Y Cf. A269097.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 19 2016

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Last modified April 23 11:27 EDT 2024. Contains 371913 sequences. (Running on oeis4.)