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 A060045 #10 Jul 12 2019 02:51:48 %S A060045 1,-1,1,-2,10,-11,12,-21,31,-13,23,-42,42,-42,43,22,-14,33,-126,185, %T A060045 -273,406,-387,637,-945,1092,-1389,1841,-2358,2852,-3023,3876,-4953, %U A060045 5593,-6321,7581,-9222,10241,-11205,14021,-16247,17710,-19858,23015,-26705,28908,-31318,36270,-41316,45619,-49015,55287 %N A060045 Generalized sum of divisors function: third diagonal of A060044. %H A060045 P. A. MacMahon, <a href="https://doi.org/10.1112/plms/s2-19.1.75">Divisors of numbers and their continuations in the theory of partitions</a>, Proc. London Math. Soc., 19 (1919), 75-113; Coll. Papers II, pp. 303-341. %F A060045 G.f.: (t(1)^3-3*t(1)*t(2)+2*t(3))/6 where t(i) = Sum(x^(n*i)/(1+x^n)^(2*i),n=1..inf), i=1..3. - _Vladeta Jovovic_, Sep 21 2007 %K A060045 sign,easy %O A060045 9,4 %A A060045 _N. J. A. Sloane_, Mar 19 2001 %E A060045 More terms from _Naohiro Nomoto_, Jan 24 2002 %E A060045 More terms from _Vladeta Jovovic_, Sep 21 2007