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A237091 Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the lower median minus the upper median of every 2X2 subblock equal 0
81, 1735, 95954, 14756791, 5118051860, 5288981745228, 10967135442162585, 75684078146093801635, 911544449456708216247280 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A237099

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A237503 A268974 A206677 * A253306 A237801 A328683

Adjacent sequences: A237088 A237089 A237090 * A237092 A237093 A237094

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 03 2014

STATUS

approved

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Last modified December 1 22:12 EST 2022. Contains 358484 sequences. (Running on oeis4.)