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 A327835 #9 Sep 28 2019 07:44:18 %S A327835 2732225029,314014500337,1949332597181,36440244156523,123167650691711, %T A327835 996133536974297,12637043369352469,26255687399203543, %U A327835 182859787113571787 %N A327835 Smallest circular prime with 12 digits in base prime(n). %C A327835 Excluding repunits, no circular primes with more than 12 digits are known, apart 58589854785907 that in base 11 has 14 digits. Also unknown are circular primes of length at least 12 in composite bases. %C A327835 Repunits of 12 digits in any base b are not prime because they are always divisible by b+1. %C A327835 a(4) = 2732225029 found by _Felix Fröhlich_. %H A327835 Wikipedia, <a href="https://en.wikipedia.org/wiki/Circular_prime">Circular prime</a>. %e A327835 a(5) = 314014500337 = (111199AA988A)_11 is the smallest circular prime in base prime(5)=11 with 12 digits. By rotating its base 11 digits we obtain other 11 primes: 2881663478867, 2544462772057, 2513808162347, 2796333050257, 3107328801587, 3135601142617, 2852859684827, 2827155915937, 542325844787, 334614020137, and 315731126987. %Y A327835 Cf. A016114, A293663, A293660, A327811. %K A327835 nonn,base,more %O A327835 4,1 %A A327835 _Giovanni Resta_, Sep 27 2019