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A220578 Equals one maps: number of nX7 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and antidiagonal neighbors in a random 0..1 nX7 array 0
64, 5240, 436288, 33180533, 2449921734, 178051989526, 12835487766480 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A220579

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A302964 A302807 A303468 * A067821 A283491 A300471

Adjacent sequences: A220575 A220576 A220577 * A220579 A220580 A220581

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 16 2012

STATUS

approved

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Last modified January 29 20:10 EST 2023. Contains 359926 sequences. (Running on oeis4.)