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A281709 Number of n X n 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. 0
1, 3, 8, 97, 937, 29849, 1721319, 178547832, 41247350230, 17968646792801 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A281715.

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=4

..0..0..0..0. .0..1..0..1. .0..0..1..0. .0..0..1..1. .0..0..0..1

..0..0..1..1. .1..0..1..0. .0..1..0..1. .1..1..0..0. .1..1..1..0

..0..1..1..1. .1..1..0..1. .1..0..1..0. .1..1..0..0. .1..1..0..0

..0..0..1..1. .1..1..1..0. .0..1..0..1. .1..1..0..0. .1..0..0..0

CROSSREFS

Cf. A281715.

Sequence in context: A069703 A114737 A233163 * A099296 A066619 A028504

Adjacent sequences:  A281706 A281707 A281708 * A281710 A281711 A281712

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 28 2017

STATUS

approved

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Last modified June 19 09:39 EDT 2021. Contains 345126 sequences. (Running on oeis4.)