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 A075130 #15 Feb 09 2025 14:22:57
%S A075130 140001089,1401099989,14000109989,140108910989,1401089109989,
%T A075130 14001089001089,14010890109989,140000010891089,140000109999989,
%U A075130 140010890010989,140010989001089,140010989109989,140108900109989
%N A075130 Primes with decimal representation 140{{0}10{9}89}.
%C A075130 57 times one of these primes is a picture-perfect number (see A075131).
%H A075130 Sean A. Irvine, <a href="/A075130/b075130.txt">Table of n, a(n) for n = 1..1000</a>
%H A075130 Discussion forum, <a href="https://web.archive.org/web/20051029095628/http://disc.server.com/Indices/187886.html">Systematic Undertaking to Find Picture-Perfect Numbers</a>
%H A075130 Joseph Pe, <a href="http://jlpe.tripod.com/ppn/ppnpaper.htm">Picture-Perfect Numbers and Other Digit-Reversal Diversions</a>
%H A075130 Rulthan P. Sumicad, <a href="https://doi.org/10.32996/jmss.2023.4.4.11">On the Picture-Perfect Number</a>, J. Math. Stat. Studies (2023).
%e A075130 a(4)=140108910989 because this is the 4th prime of the required form.
%Y A075130 A075131(n)=57*a(n)
%Y A075130 Cf. A075131, A069942.
%K A075130 base,nonn
%O A075130 1,1
%A A075130 _Jens Kruse Andersen_, Sep 04 2002