Search: id:A116532
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%I A116532
%S A116532 0,0,3,285,50820,23551920,31898503077,134251404794199
%N A116532 Number of singular n X n rational {0,1}-matrices with no zero rows or 
               columns and with all rows distinct, up to permutation of rows.
%F A116532 a(n) = A054780(n) - A088389(n).
%Y A116532 Cf. A000410, A116506, A116527.
%Y A116532 Sequence in context: A139984 A057631 A058455 this_sequence A124357 A157579 
               A104821
%Y A116532 Adjacent sequences: A116529 A116530 A116531 this_sequence A116533 A116534 
               A116535
%K A116532 more,nonn
%O A116532 1,3
%A A116532 Vladeta Jovovic (vladeta(AT)eunet.rs), Apr 03 2006

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