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 A238316 Number of (n+1)X(n+1) 0..2 arrays with no element greater than all horizontal neighbors or less than all vertical neighbors 0
 3, 67, 4294, 721939, 459256128, 1266938409578, 13394202897232848, 504070949140994691397 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A238323 LINKS EXAMPLE Some solutions for n=3 ..0..1..1..0....0..2..2..2....0..0..0..0....1..1..2..2....2..2..2..0 ..0..0..0..0....0..1..1..0....0..0..0..0....1..1..2..2....0..2..2..0 ..0..0..0..0....1..1..1..0....0..0..1..1....0..1..1..1....0..0..2..2 ..1..1..0..0....2..2..2..2....0..2..2..1....0..1..1..1....0..0..2..2 CROSSREFS Sequence in context: A342505 A186208 A217625 * A182367 A091872 A079320 Adjacent sequences:  A238313 A238314 A238315 * A238317 A238318 A238319 KEYWORD nonn AUTHOR R. H. Hardin, Feb 24 2014 STATUS approved

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Last modified December 5 10:11 EST 2021. Contains 349543 sequences. (Running on oeis4.)