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 A255174 #12 Sep 08 2022 08:46:11
%S A255174 2,6,10,18,18,24,30,36,42,42,58,62,66,74,84,92,94,100,106,108,126,124,
%T A255174 148,136,150,158,168,170,178,182,194,192,206,220,222,234,234,236,246,
%U A255174 250,256,268,284,286,298,308,320,324,332,322,326,342,360,360,376,384
%N A255174 a(n) = prime(3*n) - prime(2*n).
%C A255174 The sequence is not monotonic since, for instance, a(22) = 124 < 126 = a(21).
%t A255174 Table[Prime[3n]-Prime[2n], {n,100}]
%o A255174 (Magma) [NthPrime(3*n) - NthPrime(2*n): n in [1..80]]; // _Vincenzo Librandi_, Feb 16 2015
%Y A255174 Cf. A072473.
%K A255174 nonn
%O A255174 1,1
%A A255174 _Zak Seidov_, Feb 15 2015
%E A255174 More terms from _Vincenzo Librandi_, Feb 16 2015