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 A266938 Number of 5Xn binary arrays with rows lexicographically nondecreasing and columns lexicographically nondecreasing and row sums nondecreasing and column sums nonincreasing. 1
 6, 19, 44, 100, 210, 429, 816, 1534, 2727, 4753, 7931, 13044, 20676, 32360, 49327, 73959, 108612, 157751, 224746, 317514, 440564, 606496, 823905, 1110469, 1480403, 1957027, 2563177, 3335398, 4302564, 5520403, 7021711, 8888187, 11173884 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 5 of A266935. LINKS R. H. Hardin, Table of n, a(n) for n = 1..57 EXAMPLE Some solutions for n=4 ..0..1..1..1....0..0..0..0....0..0..0..1....0..0..0..0....0..0..0..0 ..1..0..1..1....0..0..0..0....1..1..1..0....0..0..1..1....0..0..0..0 ..1..1..0..1....0..0..0..0....1..1..1..0....1..1..0..0....0..0..1..1 ..1..1..1..0....0..0..0..1....1..1..1..0....1..1..0..1....1..1..0..1 ..1..1..1..1....1..1..1..0....1..1..1..1....1..1..1..0....1..1..1..0 CROSSREFS Cf. A266935. Sequence in context: A183763 A209403 A272707 * A299265 A005712 A299278 Adjacent sequences:  A266935 A266936 A266937 * A266939 A266940 A266941 KEYWORD nonn AUTHOR R. H. Hardin, Jan 06 2016 STATUS approved

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Last modified June 5 06:41 EDT 2020. Contains 334828 sequences. (Running on oeis4.)