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A267993 Number of 4Xn arrays containing n copies of 0..4-1 with row sums and column sums nondecreasing. 0
1, 189, 7477, 425488, 20924732, 1102544770, 53379559302, 2649768641528 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 4 of A267990.

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Cf. A267990.

Sequence in context: A211819 A266135 A133351 * A286791 A076012 A092136

Adjacent sequences:  A267990 A267991 A267992 * A267994 A267995 A267996

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 23 2016

STATUS

approved

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Last modified May 31 09:15 EDT 2020. Contains 334748 sequences. (Running on oeis4.)