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 A153412 #16 Feb 11 2020 04:40:12 %S A153412 2904,3150,7440 %N A153412 Differences in the first known 3 X 3 X 3 generalized arithmetic progression consisting of only prime numbers. %H A153412 Andrew Granville, <a href="http://www.dms.umontreal.ca/~andrew/PDF/PrimePatterns.pdf">Prime Number Patterns</a>, American Mathematical Monthly, April 2008. %H A153412 MAA, <a href="https://www.maa.org/news/math-news/students-uncover-a-novel-prime-progression">Students Uncover a Novel Prime Progression</a>, November 25, 2008. %Y A153412 Cf. A113830, A113831. %K A153412 bref,fini,full,nonn %O A153412 1,1 %A A153412 _Jonathan Vos Post_, Dec 25 2008