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A279747 Number of 7Xn 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. 1

%I #4 Dec 18 2016 07:49:36

%S 0,708,14827,209558,2672708,33954530,413326300,4935790522,58121852669,

%T 675518172098,7773001073377,88696281069640,1004930528193136,

%U 11316984133423012,126774873608784154,1413596066478838994

%N Number of 7Xn 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

%C Row 7 of A279741.

%H R. H. Hardin, <a href="/A279747/b279747.txt">Table of n, a(n) for n = 1..72</a>

%e Some solutions for n=3

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

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

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

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

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

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

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

%Y Cf. A279741.

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 18 2016

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