A220585 - OEIS

A220585

Equals one maps: number of 7Xn binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and antidiagonal neighbors in a random 0..1 7Xn array

1, 8192, 22775, 26616961, 1120269376, 166807007000, 12835487766480

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

OFFSET

1,2

COMMENTS

Row 7 of A220579

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for n=3

..0..0..0....1..0..0....1..0..0....1..0..1....0..0..0....1..1..0....0..1..0

..0..0..0....0..1..0....0..1..0....1..0..0....0..1..1....0..1..0....0..1..0

..0..1..0....0..1..0....0..1..1....0..0..0....1..0..1....0..0..0....0..0..0

..0..1..0....0..1..1....1..1..0....0..0..1....1..1..1....0..0..1....0..0..1

..0..1..0....1..0..0....0..1..0....1..0..1....1..0..0....1..1..1....1..1..1

..0..0..1....0..0..0....0..1..1....1..1..1....0..1..0....1..0..0....1..1..0

..1..1..0....0..1..1....1..0..0....1..0..0....0..1..0....0..1..1....0..0..0

CROSSREFS

Sequence in context: A222527 A035908 A069274 * A305756 A195661 A017690

Adjacent sequences: A220582 A220583 A220584 * A220586 A220587 A220588

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 16 2012

STATUS

approved