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Number of 6Xn 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
1

%I #4 Dec 24 2016 08:40:38

%S 0,366,8666,118857,1393359,14787217,144819856,1355133674,12222561957,

%T 107168421376,919014967352,7738697955701,64184333582436,

%U 525544904926118,4256024819831325,34138948634797208,271561971723338553

%N Number of 6Xn 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

%C Row 6 of A279977.

%H R. H. Hardin, <a href="/A279982/b279982.txt">Table of n, a(n) for n = 1..124</a>

%e Some solutions for n=4

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

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

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

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

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

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

%Y Cf. A279977.

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 24 2016

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Last modified September 20 03:21 EDT 2024. Contains 376016 sequences. (Running on oeis4.)