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 A361328 #8 Mar 16 2023 05:54:13 %S A361328 1,2,2,5,3,3,2,2,7,3,3,5,7,2,2,5,5,2,2,3,3,7,2,2,3,7,7,5,2,2,13,11,2, %T A361328 2,5,3,2,2,5,5,2,2,5,3,3,7,2,2,3,3,7,2,2,3,3,7,2,2,3,3,2,2,3,3,2,2,3, %U A361328 3,2,2,3,3,2,2,3,3,11,2,2,11,11,2,2,13,13,2,2,3,3,5,7,2,2,3,5,5 %N A361328 a(n) is the least prime factor of A361321(n) with a(1) = 1. %H A361328 Scott R. Shannon, <a href="/A361328/b361328.txt">Table of n, a(n) for n = 1..10000</a> %e A361328 A361321(3) = 10 = 2*5, so a(3) = 2. %Y A361328 Cf. A361321, A000469, A361327 (greatest prime factor), A361329, A361329, A336957, A360519, A361119. %K A361328 nonn %O A361328 1,2 %A A361328 _Scott R. Shannon_, _Rémy Sigrist_ and _N. J. A. Sloane_, Mar 15 2023