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 A330244 #12 Dec 07 2019 01:53:53 %S A330244 70,10430,1554070,5681270,6365870 %N A330244 Weird numbers m (A006037) such that sigma(m)/m > sigma(k)/k for all weird numbers k < m, where sigma(m) is the sum of divisors of m (A000203). %C A330244 Benkoski and Erdős asked whether sigma(n)/n can be arbitrarily large for weird number n. Erdős offered $25 for the solution of this question. %C A330244 No more terms below 10^10. %D A330244 Richard K. Guy, Unsolved Problems in Number Theory, 3rd Edition, Springer, 2004, Section B2, p. 77. %H A330244 Stan Benkoski, <a href="http://doi.org/10.2307/2316276">Are All Weird Numbers Even?</a>, Problem E2308, The American Mathematical Monthly, Vol. 79, No. 7 (1972), p. 774. %H A330244 S. J. Benkoski and P. Erdős, <a href="https://doi.org/10.1090/S0025-5718-1974-0347726-9">On weird and pseudoperfect numbers</a>, Mathematics of Computation, Vol. 28, No. 126 (1974), pp. 617-623, <a href="http://www.renyi.hu/~p_erdos/1974-24.pdf">alternative link</a>, <a href="https://doi.org/10.1090/S0025-5718-1975-0360452-6">corrigendum</a>, ibid., Vol. 29, No. 130 (1975), p. 673. %H A330244 Paul Erdős, <a href="https://doi.org/10.1007/BFb0063064">Problems and results on combinatorial number theory III</a>, in: M. B. Nathanson (ed.), Number Theory Day, Proceedings of the Conference Held at Rockefeller University, New York 1976, Lecture Notes in Mathematics, Vol 626, Springer, Berlin, Heidelberg, 1977, pp. 43-72. See page 47. %H A330244 Paul Erdős, <a href="https://doi.org/10.1007/978-1-4612-4086-0_18">Some problems I presented or planned to present in my short talk</a>, in: B. C. Berndt, H. G. Diamond, and A. J. Hildebrand (eds.), Analytic Number Theory, Volume 1, Proceedings of a Conference in Honor of Heini Halberstam, Progress in Mathematics, Vol. 138, Birkhäuser Boston, 1996, pp. 333-335. %e A330244 The abundancy indices of the terms are sigma(a(n))/a(n) = 2.0571... < 2.0709... < 2.0710... < 2.0716... < 2.0716... %Y A330244 Cf. A000203, A006037. %K A330244 nonn,more %O A330244 1,1 %A A330244 _Amiram Eldar_, Dec 06 2019