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 A175219 #9 Aug 07 2023 18:41:35
%S A175219 9,9,10,12,16,18,22,24,27,34,35,42,46,48,51,57,64,65,72,76,77,84,87,
%T A175219 93,102,106,108,112,114,117,132,135,142,143,154,155,161,168,171,177,
%U A175219 184,185,196,198,202,203,215,228,232,234,237,244,245,255,261,267,274
%N A175219 The fourth nonprimes after the primes.
%H A175219 Harvey P. Dale, <a href="/A175219/b175219.txt">Table of n, a(n) for n = 1..1000</a>
%t A175219 Module[{nn=1000,cmps},cmps=Partition[Select[Range[nn],CompositeQ],4,1];Table[SelectFirst[ cmps,#[[1]]>p&],{p,Prime[Range[PrimePi[cmps[[-1,1]]]]]}]][[;;,4]] (* _Harvey P. Dale_, Aug 07 2023 *)
%K A175219 nonn
%O A175219 1,1
%A A175219 _Jaroslav Krizek_, Mar 06 2010
%E A175219 More terms from _Harvey P. Dale_, Aug 07 2023