A279661 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 two elements, and with new values introduced in order 0 sequentially upwards.

0, 2232, 549608, 113887852, 20868369045, 3484404510555, 548662535504065, 82669943798156117, 12049285468552520957, 1710840847756519362993, 237848597864301016766795, 32497700300007970516574682

Offset

1,2

Comments

Row 5 of A279657.

Links

R. H. Hardin, Table of n, a(n) for n = 1..19

Example

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

Crossrefs

Cf. A279657.

Sequence in context: A205039 A205981 A205038 * A288846 A289454 A372248

Adjacent sequences: A279658 A279659 A279660 * A279662 A279663 A279664

Keyword

nonn

Author

R. H. Hardin, Dec 16 2016

Status

approved