Voozh

A222569

Number of n X 4 0..2 arrays with no more than floor(nX4/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

4, 10, 56, 435, 4790, 50535, 547563, 5815939, 63130202, 676152734, 7328771224, 79083695286, 857913193954, 9302185273377, 101073333908828, 1099637763169027, 11970412457540599, 130557727722965457, 1423911243991041430

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 4 of A222573.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..128

EXAMPLE

Some solutions for n=3

..0..0..0..0....0..0..0..0....0..0..0..0....0..1..2..2....0..0..0..1

..0..0..0..0....0..0..0..0....0..0..0..0....2..2..2..2....0..0..0..0

..1..0..2..0....0..0..0..1....0..0..1..0....2..2..2..2....0..0..0..1