A279703 Number of n X n 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.

1, 2, 11, 125, 3245, 187484, 24137862, 6837220721, 4307342174510, 5994530717421378, 18451958514090493382

Offset

1,2

Comments

Diagonal of A279709.

Links

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

Example

Some solutions for n=4
..0..1..0..1. .0..1..0..1. .0..1..0..0. .0..1..0..1. .0..1..1..0
..0..1..0..0. .1..0..0..1. .0..1..1..1. .0..1..1..0. .0..0..1..0
..0..1..1..0. .1..0..1..0. .1..0..0..0. .0..0..1..1. .1..0..0..1
..0..0..1..0. .1..0..1..0. .0..1..1..0. .1..0..0..1. .1..1..0..1

Crossrefs

Cf. A279709.

Sequence in context: A361036 A224366 A342357 * A206401 A193207 A112864

Adjacent sequences: A279700 A279701 A279702 * A279704 A279705 A279706

Keyword

nonn

Author

R. H. Hardin, Dec 17 2016

Status

approved