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A116506
Number of singular n X n rational {0,1}-matrices with no zero rows.
4
0, 3, 169, 28065, 16114831, 33686890209, 262530190180063, 7717643584470877185
OFFSET
1,2
FORMULA
a(n) = A055601(n) - A055165(n).
CROSSREFS
KEYWORD
more,nonn
AUTHOR
Vladeta Jovovic, Apr 03 2006
STATUS
approved