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A220405 Equals two maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal, diagonal and antidiagonal neighbors in a random 0..1 nX5 array 0
7, 93, 6013, 128448, 2996186, 74035199 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A220406

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A197484 A218835 A219417 * A109304 A134113 A071584

Adjacent sequences: A220402 A220403 A220404 * A220406 A220407 A220408

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 13 2012

STATUS

approved

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Last modified March 24 09:09 EDT 2023. Contains 361470 sequences. (Running on oeis4.)