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A267663 Number of n X 4 0..1 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order. 1

%I

%S 5,50,500,3143,18432,98438,508681,2560344,12721832,62688891,307514468,

%T 1504686646,7352965785,35912894408,175383062746,856630710989,

%U 4185293733440,20456112775414,100023287817835,489294036823648

%N Number of n X 4 0..1 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.

%C Column 4 of A267667.

%H R. H. Hardin, <a href="/A267663/b267663.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A267663/a267663.txt">Empirical recurrence of order 80</a>

%F Empirical recurrence of order 80 (see link above).

%e Some solutions for n=6

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

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

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

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

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

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

%Y Cf. A267667.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 19 2016

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Last modified January 18 17:18 EST 2022. Contains 350455 sequences. (Running on oeis4.)