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 A204793 Number of (n+1)X(n+1) 0..1 arrays with rows and columns of determinants of all 2X2 subblocks lexicographically nondecreasing 0
 16, 240, 6537, 422426, 60519533, 20321241222, 15605413576718, 27766411206607643, 112893571720052223367, 1058197232959093882740859 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A204800 LINKS Table of n, a(n) for n=1..10. EXAMPLE Some solutions for n=4 ..1..0..1..0..1....1..1..1..1..1....1..0..0..1..0....1..1..1..0..1 ..0..0..1..0..1....0..0..0..0..0....0..0..0..0..0....1..0..0..0..1 ..1..0..0..0..1....1..1..1..0..1....1..0..0..1..0....0..0..1..0..1 ..0..0..1..0..1....1..1..1..0..0....1..0..0..1..1....1..0..0..0..0 ..0..0..0..0..0....0..0..0..0..0....1..0..0..0..1....1..0..0..1..0 CROSSREFS Sequence in context: A170735 A058667 A005619 * A173605 A175720 A342031 Adjacent sequences: A204790 A204791 A204792 * A204794 A204795 A204796 KEYWORD nonn AUTHOR R. H. Hardin Jan 19 2012 STATUS approved

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Last modified December 7 21:37 EST 2023. Contains 367662 sequences. (Running on oeis4.)