A279583 Number of 4Xn 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.

0, 352, 23072, 1356120, 72177144, 3684310576, 181962323164, 8787026600092, 417085943095700, 19534107020719616, 905081723458584548, 41566958473756323604, 1894986340410192048268, 85851638573599652691500

Offset

1,2

Comments

Row 4 of A279580.

Links

R. H. Hardin, Table of n, a(n) for n = 1..109

Example

Some solutions for n=3
..0..0..1. .0..1..0. .0..1..2. .0..1..0. .0..0..1. .0..1..0. .0..1..1
..1..1..2. .0..1..1. .1..2..2. .2..0..0. .1..1..2. .2..2..0. .0..0..2
..0..0..2. .1..2..1. .0..2..1. .0..1..1. .0..1..1. .1..1..1. .0..2..0
..2..0..2. .0..2..2. .0..0..2. .1..2..0. .0..2..1. .1..0..1. .0..1..1

Crossrefs

Cf. A279580.

Sequence in context: A229740 A255500 A256763 * A156177 A104160 A245440

Adjacent sequences: A279580 A279581 A279582 * A279584 A279585 A279586

Keyword

nonn

Author

R. H. Hardin, Dec 15 2016

Status

approved