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 A342174 #7 Mar 07 2021 17:30:56 %S A342174 3,11,23,43,53,71,107,229,241,269,293,313,643,701,857,883,1109,1361, %T A342174 1601,1693,1697,1721,1867,2267,2621,2719,2767,2789,2971,3067,3137, %U A342174 3169,3529,3533,3557,3739,3767,4007,4093,4139,4153,4219,4337,4423,4447,4451,4517,4663,4787,4943,5279,5387,5501 %N A342174 Primes in A342173. %H A342174 Robert Israel, <a href="/A342174/b342174.txt">Table of n, a(n) for n = 1..1000</a> %e A342174 The first three primes in A342173 are a(1) = A342173(3) = 3, a(2) = A342173(5) = 11, and a(3) = A342173(8) = 23. %p A342174 f:= proc(n) local t, i, s; %p A342174 t:= ithprime(n); %p A342174 add(floor(t/ ithprime(i)), i=1..n-1) %p A342174 end proc: %p A342174 select(isprime, map(f,[$1..100])); %Y A342174 Cf. A342173. %K A342174 nonn %O A342174 1,1 %A A342174 _J. M. Bergot_ and _Robert Israel_, Mar 03 2021