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A280063 Number of n X n 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. 0
1, 1, 5, 52, 790, 23564, 1188839, 110266512, 18113056960, 5286615353516, 2755789744812452 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Diagonal of A280069.

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A280069.

Sequence in context: A134111 A071583 A099881 * A196531 A108459 A223898

Adjacent sequences:  A280060 A280061 A280062 * A280064 A280065 A280066

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 25 2016

STATUS

approved

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Last modified June 17 23:41 EDT 2021. Contains 345088 sequences. (Running on oeis4.)