Search: id:A034806
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%I A034806
%S A034806 2,5,9,12,17,22,28,32,40,41,50,56,63,68,78,80,91,94,102,110,120,123,
%T A034806 131,141,148,156,166,163,179,185,195,206,214,211,229,237,248,248,265,
%U A034806 260,281,284,296,305,314,320,333,337
%N A034806 Number of unique sets of 2 numbers > 1 such that their product is between 
               x^2 and (x+1)^2.
%F A034806 sum(floor( (2x+(x^2)%k)/k), for k=2..x).
%e A034806 a(3)=5 because the only sets of 2-numbers > 1 that form a product between 
               3^2 and 4^2 are (2,5) (2,6) (3,4) (2,7) (3,5).
%Y A034806 Cf. A037048, A037092.
%Y A034806 Sequence in context: A086814 A086343 A056549 this_sequence A034307 A070828 
               A112988
%Y A034806 Adjacent sequences: A034803 A034804 A034805 this_sequence A034807 A034808 
               A034809
%K A034806 nonn
%O A034806 2,1
%A A034806 Joe K. Crump (joecr(AT)carolina.rr.com)

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