This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A127390 #15 Feb 02 2018 16:44:19 %S A127390 13,180,2460,18060,332640,3548160,37837800,311351040,3455131680, %T A127390 32639967360,479785466160,3379449593520,44734582292400, %U A127390 527257688958000,3493634344200000,31840983413038800,408373247583100800 %N A127390 Sum of all n-digit highly composite numbers. %H A127390 Robert G. Wilson v, <a href="/A127390/b127390.txt">Table of n, a(n) for n = 1..76</a> %H A127390 Graeme McRae, <a href="http://2000clicks.com/MathHelp/NumberFactorsHighlyComposite.htm">Highly Composite Numbers</a> %H A127390 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 A127390 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 A127390 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 A127390 Cf. A002182. %K A127390 nonn,base %O A127390 1,1 %A A127390 _Parthasarathy Nambi_, Mar 30 2007 %E A127390 More terms from _Robert G. Wilson v_, Apr 08 2007