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%I #15 Feb 02 2018 16:44:19
%S 13,180,2460,18060,332640,3548160,37837800,311351040,3455131680,
%T 32639967360,479785466160,3379449593520,44734582292400,
%U 527257688958000,3493634344200000,31840983413038800,408373247583100800
%N Sum of all n-digit highly composite numbers.
%H Robert G. Wilson v, <a href="/A127390/b127390.txt">Table of n, a(n) for n = 1..76</a>
%H Graeme McRae, <a href="http://2000clicks.com/MathHelp/NumberFactorsHighlyComposite.htm">Highly Composite Numbers</a>
%H S. Ramanujan, <a href="http://ramanujan.sirinudi.org/Volumes/published/ram15.html">Highly composite numbers</a>, Proceedings of the London Mathematical Society, 2, XIV, 1915, 347 - 409.
%e If n=1 then the sum of the highly composite numbers 1+2+4+6 = 13 which is the first term in the sequence.
%e If n=2 then the sum of the highly composite numbers 12+24+36+48+60 = 180 which is the second term in the sequence.
%Y Cf. A002182.
%K nonn,base
%O 1,1
%A _Parthasarathy Nambi_, Mar 30 2007
%E More terms from _Robert G. Wilson v_, Apr 08 2007
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