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 A224368 Number of n X n 0..2 arrays with rows unimodal and antidiagonals nondecreasing 1
 3, 54, 1838, 77793, 3607078, 174854516, 8684742989, 437757725110, 22283207886650, 1142441203546438, 58904154561219603, 3051594326913582293, 158760240705250821719, 8291742411017787312243, 434658935860309950718887 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A224374 LINKS R. H. Hardin, Table of n, a(n) for n = 1..24 EXAMPLE Some solutions for n=3 ..0..0..0....2..0..0....0..0..0....1..2..0....2..1..1....1..0..0....1..1..0 ..0..1..1....2..1..0....1..0..0....2..2..1....2..1..0....1..0..0....2..0..0 ..1..1..0....1..1..2....2..2..1....2..1..0....1..2..0....0..2..0....1..1..2 CROSSREFS Sequence in context: A224304 A266523 A157550 * A091826 A091796 A171213 Adjacent sequences: A224365 A224366 A224367 * A224369 A224370 A224371 KEYWORD nonn AUTHOR R. H. Hardin Apr 05 2013 STATUS approved

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Last modified August 15 17:13 EDT 2024. Contains 375173 sequences. (Running on oeis4.)