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 A050275 #15 Feb 16 2025 08:32:40 %S A050275 8,12,15,16,20,21,24,24,24,28,30,32,33,35,36,39,40,40,40,42,44,45,48, %T A050275 48,48,51,52,55,56,56,56,57,60,60,60,63,64,65,66,68,69,70,72,72,72,75, %U A050275 76,77,78,80,80,80,84,84,84,85,87,88,88,88,90,91,92,93,95,96,96,96,99 %N A050275 Largest value c for Diophantine 1-triples (a,b,c) ordered by smallest c,b. %H A050275 Trajan Hammonds, Seoyoung Kim, Steven J. Miller, Arjun Nigam, Kyle Onghai, Dishant Saikia, and Lalit M. Sharma, <a href="https://arxiv.org/abs/2201.06232">k-Diophantine m-tuples in Finite Fields</a>, arXiv:2201.06232 [math.NT], 2022. %H A050275 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/DiophantusProperty.html">Diophantus Property</a>. %o A050275 (PARI) list(lim)=my(v=List()); for(b=8,lim, for(a=2,b-1, if(!issquare(a*b+1), next); for(c=1,a-1, if(issquare(a*c+1) && issquare(b*c+1), listput(v,b); next(2))))); Vec(v) \\ _Charles R Greathouse IV_, Feb 09 2025 %Y A050275 Cf. A050273, A050274. %K A050275 nonn %O A050275 1,1 %A A050275 _Eric W. Weisstein_