A281769 Number of 5Xn 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

0, 38, 201, 1872, 12191, 85844, 589990, 3845590, 25703392, 166880128, 1080273873, 6965900750, 44487321221, 283503705456, 1797488483677, 11352536170284, 71500155029453, 448832589255878, 2810514285498993, 17557109431928644

Offset

1,2

Comments

Row 5 of A281765.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Cf. A281765.

Sequence in context: A297541 A235079 A005910 * A191698 A124238 A020870

Adjacent sequences: A281766 A281767 A281768 * A281770 A281771 A281772

Keyword

nonn

Author

R. H. Hardin, Jan 29 2017

Status

approved