%I A126786
%S A126786 1,2,4,7,6,7,11,11,20,34,17,34,25,19,19,34,27,25,25,26,33,41,36,45,47,
%T A126786 49,98,62,40,86,88,82,57,65,67,148,142,67,92,134,61,66,56,68,71,68,63,
%U A126786 71,83,97,106,134,77,95,166,186,222,183,113,119,103,103,107,178,134,164
%N A126786 a(n) = n-th positive divisor of ((2n)!/n!^2).
%H A126786 Leroy Quet, <a href="http://www.prism-of-spirals.net/">Home Page</a> 
               (listed in lieu of email address)
%e A126786 (2*5)!/5!^2 = 252. The divisors of 252 are 1, 2, 3, 4, 6, 7, 9, 12, 14, 
               18, 21, 28, 36, 42, 63, 84, 126, 252. The 5th of these is 6. So a(5) 
               = 6.
%t A126786 f[n_] := Divisors[(2n)!/n!^2][[n]];Array[f, 66] (*Chandler*)
%Y A126786 Cf. A000984.
%Y A126786 Sequence in context: A073158 A035311 A129980 this_sequence A154614 A161211 
               A161368
%Y A126786 Adjacent sequences: A126783 A126784 A126785 this_sequence A126787 A126788 
               A126789
%K A126786 nonn
%O A126786 1,2
%A A126786 Leroy Quet Feb 18 2007
%E A126786 Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Feb 26 2007
%E A126786 More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Feb 25 2007