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 A219679 Number of n X n arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 n X n array 0
 3, 4, 31, 427, 8964, 344926, 35011623, 10451333258 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A219686 LINKS Table of n, a(n) for n=1..8. EXAMPLE Some solutions for n=3 ..1..0..0....1..0..0....1..1..0....2..0..0....0..0..0....1..0..0....0..0..0 ..1..0..0....1..0..0....1..0..0....2..0..0....0..0..0....0..0..0....0..0..0 ..1..1..2....2..2..2....2..0..0....2..2..2....2..2..2....0..0..1....2..1..1 CROSSREFS Sequence in context: A372794 A058603 A042653 * A042431 A269724 A296250 Adjacent sequences: A219676 A219677 A219678 * A219680 A219681 A219682 KEYWORD nonn AUTHOR R. H. Hardin Nov 25 2012 STATUS approved

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Last modified September 7 19:59 EDT 2024. Contains 375749 sequences. (Running on oeis4.)