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A250505 Number of (n+2)X(1+2) 0..2 arrays with nondecreasing medians of every three consecutive values in every row and column 1
19683, 300763, 4251528, 59776471, 729000000, 8316073576, 92959677000, 992518734375, 10209839323384, 102970461234311, 1017227998469411, 9854850385971136, 94155389995652504, 889028362923875000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 1 of A250507

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Sequence in context: A250510 A250508 A250507 * A186625 A186622 A250459

Adjacent sequences:  A250502 A250503 A250504 * A250506 A250507 A250508

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 24 2014

STATUS

approved

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Last modified December 7 03:28 EST 2021. Contains 349567 sequences. (Running on oeis4.)