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 A050807 #12 Aug 20 2021 04:24:39 %S A050807 314,1592,65358,97932,384626,433832,795028,8419716,939937510, %T A050807 5820974944,59230781640,62862089986,280348253421170,679821480865132, %U A050807 8230664709384460,955058223172535940,8128481117450284102,70193852110555964462,2948954930381964428810 %N A050807 Increasing even numbers seen in decimal expansion of Pi (disregarding the decimal period) contiguous, smallest and distinct. %C A050807 Leading zero not allowed thus forcing continuation of previous term. %H A050807 Carlos Rivera, <a href="http://www.primepuzzles.net/problems/prob_018.htm">Problem 18. Pi as a concatenation of the smallest contiguous different primes</a>, The Prime Puzzles & Problems Connection. %Y A050807 Cf. A000796, A047777, A050817, A016062, A050818, A050819. %K A050807 nonn,easy,base %O A050807 1,1 %A A050807 _Patrick De Geest_, Oct 15 1999 %E A050807 More terms from _Sean A. Irvine_, Aug 19 2021