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 A201378 Number of n X n 0..1 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other 0
 2, 3, 19, 121, 7148, 326650, 175765510, 74872992399, 400292326222730, 1748923742658486631 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A201384 LINKS Table of n, a(n) for n=1..10. EXAMPLE Some solutions for n=5 ..0..0..0..0..1....0..0..0..1..1....0..0..0..1..1....0..0..0..0..0 ..0..0..1..1..0....0..0..0..1..1....0..0..1..0..0....0..1..1..1..1 ..0..1..1..1..0....0..0..1..0..1....0..1..0..0..0....1..0..0..0..1 ..1..0..0..1..1....0..1..1..0..1....0..1..1..0..1....1..0..0..0..1 ..1..0..1..1..0....1..0..0..1..1....1..1..1..1..1....1..0..1..1..1 CROSSREFS Sequence in context: A366357 A119344 A072877 * A241350 A032329 A219285 Adjacent sequences: A201375 A201376 A201377 * A201379 A201380 A201381 KEYWORD nonn AUTHOR R. H. Hardin Nov 30 2011 STATUS approved

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Last modified November 30 21:14 EST 2023. Contains 367462 sequences. (Running on oeis4.)