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 A110995 #21 Sep 07 2021 02:16:10 %S A110995 0,1,2,4,6,8,50,54,102,134,212,872,3055,3427,3528,4262,4414,6084,93792 %N A110995 Integers k such that 6*10^k + 41 is a prime number. %C A110995 See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "60041". %C A110995 a(20) > 10^5. - _Robert Price_, Jan 19 2017 %H A110995 Makoto Kamada, <a href="https://stdkmd.net/nrr/prime/">List of near-repdigit-related prime numbers</a>. %H A110995 <a href="/index/Pri#Pri_rep">Index entries for primes involving repunits</a>. %e A110995 k = 4 is a term because 6*10^4 + 41 = 6*10000 + 41 = 60000 + 41 = 60041, which is a prime number. %Y A110995 Cf. A049054, A088274, A088275, A095688, A107083, A108049, A108050, A108052, A108054. %K A110995 nonn,more %O A110995 1,3 %A A110995 Julien Peter Benney (jpbenney(AT)ftml.net), Oct 04 2005 %E A110995 a(18) from _Ray Chandler_, Dec 23 2010 %E A110995 a(1)-a(2) prepended by _Robert Price_, Jan 19 2017 %E A110995 a(19) from _Robert Price_, Jan 19 2017