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A279584 Number of 5Xn 0..2 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 15 2016 11:10:50

%S 0,3008,547168,86246944,12490527012,1732429706176,232705351295280,

%T 30571024321366804,3948460628685790836,503258449385912281884,

%U 63463648917297433694668,7933378997893481856831644

%N Number of 5Xn 0..2 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 5 of A279580.

%H R. H. Hardin, <a href="/A279584/b279584.txt">Table of n, a(n) for n = 1..25</a>

%e Some solutions for n=2

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

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

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

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

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

%Y Cf. A279580.

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 15 2016

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Last modified April 19 13:40 EDT 2024. Contains 371792 sequences. (Running on oeis4.)