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 A141208 #23 Jan 24 2023 06:58:07
%S A141208 1,2,12,36,106,150,238,280,396,576,612,862,1020,1068,1212,1492,1732,
%T A141208 1810,2088,2346,2410,2712,2902,3220,3582,3906,4020,4210,4336,4512,
%U A141208 5278,5530,5848,6028,6636,6688,7102,7516,7740,8110,8500,8572,9282,9396,9648
%N A141208 a(n) = prime(prime(prime(n) - 1) - 1) - 1, where prime(n) = n-th prime.
%p A141208 p:=ithprime: seq(p(p(p(n)-1)-1)-1, n=1..53); # _Juri-Stepan Gerasimov_, Oct 25 2009
%t A141208 Table[Prime[Prime[Prime[n - 1] - 1] - 1] - 1, {n, 2, 50}] (* _Vincenzo Librandi_, Apr 05 2015 *)
%o A141208 (Magma) [NthPrime(NthPrime(NthPrime(n)-1)-1)-1: n in [1..50]]; // _Vincenzo Librandi_, Apr 05 2015
%Y A141208 Cf. A141139, A141185. - _Juri-Stepan Gerasimov_, Oct 25 2009
%Y A141208 Cf. A140853.
%K A141208 nonn
%O A141208 1,2
%A A141208 _Juri-Stepan Gerasimov_, Jul 31 2008
%E A141208 a(22) corrected by _D. S. McNeil_, Mar 21 2009