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 A233626 #8 Feb 16 2025 08:33:21 %S A233626 1,220,1980,3270960,53542288800 %N A233626 Least member of an amicable n-tuple: (x[1],...,x[n]) such that sigma(x[1])=...=sigma(x[n])=x[1]+...+x[n], x[i]<x[i+1]. %C A233626 Some authors use other definitions for amicable k-tuples, cf. link to MathWorld. %H A233626 Eric W. Weisstein, <a href="https://mathworld.wolfram.com/AmicableTriple.html">Amicable Triple</a>. From MathWorld--A Wolfram Web Resource. %Y A233626 Cf. A002025, A002046 and A161005 for amicable pairs. %Y A233626 Cf. A125490 - A125492 and A137231 for amicable triples. %Y A233626 Cf. A036471 - A036474 and A116148 for amicable quadruples. %Y A233626 Cf. A233553 for amicable quintuples. %K A233626 nonn,hard,more %O A233626 1,2 %A A233626 _M. F. Hasler_, Dec 12 2013