A222547 Number of 7Xn 0..1 arrays with no more than floor(7Xn/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order

64, 236, 2393, 28925, 244106, 4214575, 37975912, 737541492, 7127199636, 146867418427, 1481277189347, 31411351544315, 324007482228576, 6967610259978147, 72712661140802060, 1574958802827848043

Offset

1,1

Comments

Row 7 of A222541

Links

R. H. Hardin, Table of n, a(n) for n = 1..17

Example

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

Crossrefs

Sequence in context: A258732 A279714 A228802 * A218524 A188863 A228687

Adjacent sequences: A222544 A222545 A222546 * A222548 A222549 A222550

Keyword

nonn

Author

R. H. Hardin Feb 24 2013

Status

approved