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 A119334 #10 Feb 16 2025 08:33:01
%S A119334 10,55,109,141
%N A119334 Indices of Apery-primes: numbers n such that the concatenation of the first n decimal digits of Apery's constant zeta(3) is prime.
%C A119334 No additional terms up to 10000. - _Harvey P. Dale_, Aug 28 2019
%H A119334 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Apery-Prime.html">Apery-Prime</a>
%H A119334 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/IntegerSequencePrimes.html">Integer Sequence Primes</a>
%e A119334 zeta(3) = 1.2020569031595..., 1202056903--the concatenation of the first 10 decimal digits--is prime, so a(1)=10.
%t A119334 Module[{nn=10000,z},z=RealDigits[Zeta[3],10,nn][[1]];Select[Range[nn],PrimeQ[FromDigits[Take[z,#]]]&]] (* _Harvey P. Dale_, Aug 28 2019 *)
%Y A119334 Cf. A002117, A119333.
%K A119334 nonn,more,base
%O A119334 1,1
%A A119334 _Eric W. Weisstein_, May 14 2006
%E A119334 Edited by _Charles R Greathouse IV_, Apr 27 2010