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A238319 Number of (n+1) X (4+1) 0..2 arrays with no element greater than all horizontal neighbors or less than all vertical neighbors. 1
51, 1867, 41046, 721939, 13265123, 261676376, 5206684654, 102053610873, 1987295524193, 38770223731701, 758012281434166, 14822685184195262, 289709710098420174, 5661329642092072222, 110637907561833470425 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A238323.

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Cf. A238323.

Sequence in context: A017767 A017714 A202044 * A014943 A278623 A288604

Adjacent sequences:  A238316 A238317 A238318 * A238320 A238321 A238322

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 24 2014

STATUS

approved

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Last modified November 29 18:41 EST 2021. Contains 349416 sequences. (Running on oeis4.)