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A180994
Number of (n+5)xn binary matrices with rows and then columns in strictly increasing order as binary numbers
0
0, 0, 1, 3489, 5754681, 15031688395, 85146473995739, 1221835613883859705, 48879331646085761019504, 5817604509321397715670886548, 2157782748250229924192241839158932
OFFSET
1,4
COMMENTS
Subdiagonal 5 of A180989
EXAMPLE
All solutions for 8X3
..0..0..0
..0..0..1
..0..1..0
..0..1..1
..1..0..0
..1..0..1
..1..1..0
..1..1..1
CROSSREFS
Sequence in context: A031557 A031737 A268156 * A204721 A204960 A249525
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 30 2010
STATUS
approved