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 A230285 #18 Mar 11 2020 23:47:59
%S A230285 1,7,28,61,144,233,396,517,724,1061,1366,1847,2286,2631,3118,3803,
%T A230285 4650,5033,6222,6989,7634,8743,9830,10975,12628,14121,15098,16329,
%U A230285 17262,18397,21852,23517,25372,26959,29916,31421,33846,36583,38482,41067,43404,45473
%N A230285 a(n) = n*prime(prime(n)) - prime(n).
%C A230285 First published at Sequence Fans Mailing List on Oct 12 2013.
%H A230285 James Spahlinger, <a href="/A230285/b230285.txt">Table of n, a(n) for n = 1..10000</a>
%F A230285 a(n) = A080697(n) - A000040(n). - _Omar E. Pol_, Oct 21 2013
%t A230285 Table[n*Prime[Prime[n]] - Prime[n], {n, 1, 100}]
%o A230285 (PARI) a(n) = n*prime(prime(n)) - prime(n) \\ _Charles R Greathouse IV_, Oct 15 2013
%Y A230285 Cf. A000040, A230098.
%K A230285 nonn
%O A230285 1,2
%A A230285 _V.J. Pohjola_, Oct 15 2013