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A266541 Number of n X n binary arrays with rows and columns lexicographically nondecreasing and row and column sums nonincreasing. 0
2, 3, 5, 12, 36, 176, 1688, 48167, 4283651 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A266547.
LINKS
EXAMPLE
Some solutions for n=6
..0..0..0..0..1..1....0..0..1..1..1..1....0..1..1..1..1..1....0..1..1..1..1..1
..0..0..1..1..0..0....0..1..0..0..1..1....1..0..0..1..1..1....1..0..0..1..1..1
..0..1..0..0..0..0....0..1..0..0..1..1....1..0..1..0..0..1....1..0..1..0..1..1
..1..0..0..0..0..0....1..0..1..1..0..0....1..1..0..0..1..0....1..1..0..1..0..0
..1..0..0..0..0..0....1..0..1..1..0..0....1..1..0..1..0..0....1..1..1..0..0..0
..1..0..0..0..0..0....1..1..0..0..0..0....1..1..1..0..0..0....1..1..1..0..0..0
CROSSREFS
Cf. A266547.
Sequence in context: A306038 A008323 A000997 * A301929 A107475 A108225
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 31 2015
STATUS
approved

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Last modified June 13 22:21 EDT 2024. Contains 373391 sequences. (Running on oeis4.)