login
A279923
Number of nX4 0..2 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.
1
3, 142, 14281, 1230799, 99427182, 7837914954, 601248781220, 45231133438998, 3348526427263799, 244650217481299630, 17677455777661411625, 1265259778269055650555, 89821449423672575925643
OFFSET
1,1
COMMENTS
Column 4 of A279925.
LINKS
EXAMPLE
Some solutions for n=3
..0..1..0..0. .0..1..0..1. .0..1..1..1. .0..1..2..0. .0..1..1..1
..1..0..1..0. .1..2..2..1. .1..2..1..0. .0..0..1..0. .2..1..0..1
..0..0..1..0. .0..2..1..1. .0..0..2..1. .0..1..2..2. .0..2..0..0
CROSSREFS
Cf. A279925.
Sequence in context: A050819 A255190 A037121 * A195937 A162363 A102965
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 23 2016
STATUS
approved