A279493 Number of nX7 0..1 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

15, 801, 46095, 2241332, 98128162, 4065077852, 162346342126, 6294925767121, 238434528280477, 8863487201716422, 324449796535829989, 11723580027925010371, 418958469982919690628, 14829876008361939503733

Offset

1,1

Comments

Column 7 of A279494.

Links

R. H. Hardin, Table of n, a(n) for n = 1..58

Example

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

Crossrefs

Cf. A279494.

Sequence in context: A317798 A280310 A211104 * A183821 A301312 A374581

Adjacent sequences: A279490 A279491 A279492 * A279494 A279495 A279496

Keyword

nonn

Author

R. H. Hardin, Dec 13 2016

Status

approved