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 A038814 #20 Apr 03 2023 10:36:09
%S A038814 9592,17984,25997,33860,41538,49098,56543,63951,71274,78498,85714,
%T A038814 92938,100021,107126,114155,121127,128141,135072,142029,148933,155805,
%U A038814 162662,169511,176302,183072,189880,196645,203362,210109,216816,223492,230209
%N A038814 Number of primes less than 100000n.
%H A038814 Robert G. Wilson v, <a href="/A038814/b038814.txt">Table of n, a(n) for n = 1..10000</a>
%H A038814 Andrew R. Booker, <a href="https://t5k.org/nthprime/">The Nth Prime Page</a>
%H A038814 Thomas R. Nicely, <a href="https://faculty.lynchburg.edu/~nicely/index.html">Some Results of Computational Research in Prime Numbers</a> [See local copy in A007053]
%H A038814 Tomás Oliveira e Silva, <a href="http://sweet.ua.pt/tos/primes.html">Tables of values of pi(x) and of pi2(x)</a>
%t A038814 Table[ PrimePi[ n*10^5 ], {n, 1, 30}]
%o A038814 (PARI) a(n)=primepi(10^5*n) \\ _Charles R Greathouse IV_, Apr 29 2015
%Y A038814 Cf. A038801, A028505, A038812, A038813, A038815, A038816, A038817, A038818, A038819, A038820, A038821, A080122, A080123, A080124, A080125, A080126, A080127, A080128, A080129.
%K A038814 nonn
%O A038814 1,1
%A A038814 _Jeff Burch_
%E A038814 Edited and extended by _Robert G. Wilson v_, Jan 29 2003