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 A113420 #11 Feb 16 2025 08:32:59 %S A113420 4,10,18,25,32,42,50,58,65,72,78,83,93,106,114,125,139,143,149,157, %T A113420 167,176,183,194,198,209,219,221,229,237,243,250,260,270,273,278,286, %U A113420 294,304,314,317,323,327,337,342,352,362,371,377,394,399,405,414,420 %N A113420 Number of Pierpont primes less than 10^n. %H A113420 Amiram Eldar, <a href="/A113420/b113420.txt">Table of n, a(n) for n = 1..1000</a> %H A113420 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PierpontPrime.html">Pierpont Prime</a>. %Y A113420 Cf. A005109, A113412. %K A113420 nonn %O A113420 1,1 %A A113420 _Eric W. Weisstein_, Oct 29 2005