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A231942 Number of 3Xn 0..3 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors 1
64, 318, 8426, 206808, 4736026, 94464137, 1919281092, 41278336185, 897740885078, 19169895279256, 405027273733561, 8590742778707213, 183219148883189294, 3908854794384722672, 83220827197605442257, 1770396034339882044148 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 3 of A231940

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

..0..0..1..1....0..0..1..1....0..0..0..3....0..2..0..1....0..0..1..1

..0..0..2..1....0..1..2..2....0..2..0..0....0..0..2..0....3..3..0..0

..1..0..0..2....0..0..1..2....1..0..1..2....2..0..0..1....0..0..0..2

CROSSREFS

Sequence in context: A299947 A251196 A221486 * A221686 A211258 A252080

Adjacent sequences:  A231939 A231940 A231941 * A231943 A231944 A231945

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 15 2013

STATUS

approved

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Last modified October 30 12:22 EDT 2020. Contains 338079 sequences. (Running on oeis4.)