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 A203058 Number of n X n 0..6 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor 0
 1, 455, 3421817, 647485600638, 4668059982081633499, 1249342261879637139766649551 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A203066 LINKS EXAMPLE Some solutions for n=5 ..2..6..3..0..0....4..2..2..6..4....2..3..3..5..2....3..4..4..3..6 ..1..6..4..5..3....4..1..2..6..2....3..6..6..5..6....4..1..5..5..6 ..4..6..2..5..6....2..5..0..6..6....0..5..2..6..6....6..2..1..4..5 ..1..1..2..3..6....4..5..3..3..6....1..4..0..6..1....6..2..3..3..5 ..0..6..6..0..6....6..6..0..4..4....4..4..1..6..2....4..0..4..4..1 CROSSREFS Sequence in context: A061544 A015276 A145528 * A116331 A099650 A265493 Adjacent sequences:  A203055 A203056 A203057 * A203059 A203060 A203061 KEYWORD nonn AUTHOR R. H. Hardin Dec 28 2011 STATUS approved

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Last modified January 19 21:47 EST 2020. Contains 331066 sequences. (Running on oeis4.)