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 A109833 #7 Feb 16 2025 08:32:58 %S A109833 2,3,3,3,7,5,3,5,5,3,19,5,7,11,5,5,13,7,3,13,61,47,5,7,11,13,53,13,23, %T A109833 7,11,5,31,5,79,7,127,5,5,23,19,11,67,5,19,3,7,107,31,53,41,151,11, %U A109833 107,227,251,151,37,11,43,53,73,11,7,47,61,61,23,241,53,71,277,13 %N A109833 Smallest prime starting an arithmetic progression meeting also prime(n) and having a maximal number of terms less than prime(n). %C A109833 a(n) = A000040(n) - A109831(n) * A109832(n). %H A109833 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PrimeArithmeticProgression.html">Prime Arithmetic Progression</a> %H A109833 <a href="/index/Pri#primes_AP">Index entries for sequences related to primes in arithmetic progressions</a> %K A109833 nonn %O A109833 2,1 %A A109833 _Reinhard Zumkeller_, Jul 04 2005