Search: id:A085761
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%I A085761
%S A085761 1,1,2,1,2,2,1,2,2,2,2,2,2,3,3,2,2,3,3,3,3,2,3,3,3,3,3,4,3,3,3,3,4,4,4,
%T A085761 4,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,5,5,5,4,4,4,4,5,5,5,5,5,5,5,4,5,5,5,
%U A085761 5,5,5,5,5,5,6,6,5,5,5,5,5,5,5,6,6,6,6,6,6,5,5,5,6,6,6,6,6,6,6,6,6,6,7
%N A085761 Number of triangular numbers between n and 2n (inclusive).
%Y A085761 Sequence in context: A058978 A118916 A107800 this_sequence A102382 A024890 
               A007895
%Y A085761 Adjacent sequences: A085758 A085759 A085760 this_sequence A085762 A085763 
               A085764
%K A085761 easy,nonn
%O A085761 1,3
%A A085761 Amarnath Murthy, Jason Earls (zevi_35711(AT)yahoo.com), Jul 22 2003

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