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A200987 Number of nX5 0..4 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other 2
1, 21, 140, 1095, 4919, 27000, 97341, 383172, 1188521, 3704820, 9947816, 27240277, 65292069, 157646021, 349738426, 770969390, 1585648871, 3256248216, 6303135880, 12177430692, 22459794938, 41128002746, 72582886199, 127586136583 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 5 of A200990

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..32

EXAMPLE

Some solutions for n=3

..0..0..0..2..4....0..0..1..1..1....0..0..1..1..1....0..0..1..1..4

..1..1..1..3..4....0..2..2..2..4....0..2..2..2..3....0..2..2..2..4

..2..2..3..3..4....3..3..3..4..4....3..3..4..4..4....1..3..3..3..4

CROSSREFS

Sequence in context: A220388 A220151 A337899 * A107731 A003702 A221785

Adjacent sequences:  A200984 A200985 A200986 * A200988 A200989 A200990

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 25 2011

STATUS

approved

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Last modified October 16 15:22 EDT 2021. Contains 348042 sequences. (Running on oeis4.)