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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 November 7 00:13 EST 2024. Contains 377523 sequences.
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