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A266544 Number of nX5 binary arrays with rows and columns lexicographically nondecreasing and row and column sums nonincreasing. 1
2, 4, 8, 16, 36, 58, 110, 196, 363, 695, 1157, 2023, 3446, 5755, 9485, 14901, 23156, 35568, 53350, 79575, 114919, 165223, 233650, 327246, 453231, 618603, 836533, 1122433, 1490044, 1967385, 2565448, 3329153, 4284884, 5482977, 6970961, 8800503 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A266547.
LINKS
EXAMPLE
Some solutions for n=6
..0..1..1..1..1....0..0..1..1..1....0..1..1..1..1....0..1..1..1..1
..0..1..1..1..1....0..1..0..1..1....0..1..1..1..1....0..1..1..1..1
..1..0..0..1..1....1..0..1..0..0....1..0..0..1..1....1..0..0..0..1
..1..0..1..0..0....1..0..1..0..0....1..0..0..1..1....1..0..0..1..0
..1..1..0..0..0....1..1..0..0..0....1..1..1..0..0....1..0..1..0..0
..1..1..0..0..0....1..1..0..0..0....1..1..1..0..0....1..1..0..0..0
CROSSREFS
Cf. A266547.
Sequence in context: A126137 A085294 A195327 * A348414 A333051 A034340
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 31 2015
STATUS
approved

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Last modified April 15 11:42 EDT 2024. Contains 371681 sequences. (Running on oeis4.)