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A220995 Majority value maps: number of 3Xn binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, diagonal and antidiagonal neighbors in a random 0..3 3Xn array 0
1, 35, 324, 2899, 23895, 193052, 1550909, 12392103, 98844849, 787498031, 6270246085, 49907638031, 397162497929, 3160272329316, 25145272816990, 200066755560852, 1591791510072767, 12664659002993396 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 3 of A220993

LINKS

Table of n, a(n) for n=1..18.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A198397 A071697 A220924 * A264488 A227058 A027792

Adjacent sequences:  A220992 A220993 A220994 * A220996 A220997 A220998

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 28 2012

STATUS

approved

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Last modified September 21 06:46 EDT 2021. Contains 347596 sequences. (Running on oeis4.)