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A201094 Number of n X n 0..7 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other. 0
8, 140, 252, 2490, 1445712, 2244318652, 80495995176, 4031708477982 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A201101.
LINKS
Table of n, a(n) for n=1..8.
EXAMPLE
Some solutions for n=4
..0..0..3..3....0..0..1..4....0..0..2..3....0..0..3..5....0..0..3..4
..1..1..4..6....1..2..5..5....1..2..4..6....1..1..4..5....1..1..5..5
..2..4..5..6....2..3..6..7....1..3..5..7....2..2..6..6....2..2..6..7
..2..5..7..7....3..4..6..7....4..5..6..7....3..4..7..7....3..4..6..7
CROSSREFS
Cf. A201101.
Sequence in context: A187236 A301835 A091060 * A061996 A345650 A092703
Adjacent sequences: A201091 A201092 A201093 * A201095 A201096 A201097
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 26 2011
STATUS
approved

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Last modified August 19 03:14 EDT 2024. Contains 375284 sequences. (Running on oeis4.)