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 A138409 #25 Jul 04 2023 15:34:51
%S A138409 60,720,15600,117600,1771440,4826640,24137280,47045520,148035360,
%T A138409 594822480,887502720,2565725040,4750102560,6321361200,10779213120,
%U A138409 22164358320,42180530160,51520370640,90458377680,128100278880
%N A138409 a(n) = prime(n)^6 - prime(n)^2.
%H A138409 Vincenzo Librandi, <a href="/A138409/b138409.txt">Table of n, a(n) for n = 1..200</a>
%H A138409 <a href="/index/Pri#prime_powers">Index to sequences related to prime powers</a>
%F A138409 From _Elmo R. Oliveira_, Jan 17 2023: (Start)
%F A138409 a(n) = A030516(n) - A001248(n).
%F A138409 a(n) = 2 * A138441(n).
%F A138409 a(n) = A001248(n) * (A030514(n) - 1). (End)
%t A138409 a = {}; Do[p = Prime[n]; AppendTo[a, p^6 - p^2], {n, 1, 50}]; a
%t A138409 #^6-#^2&/@Prime[Range[20]] (* _Harvey P. Dale_, Jul 04 2023 *)
%o A138409 (PARI) forprime(p=2,1e3,print1(p^6-p^2", ")) \\ _Charles R Greathouse IV_, Jun 16 2011
%o A138409 (Magma) [NthPrime((n))^6 - NthPrime((n))^2: n in [1..30] ]; // _Vincenzo Librandi_, Jun 17 2011
%Y A138409 Cf. A030516, A001248, A138441, A030514.
%K A138409 nonn,easy
%O A138409 1,1
%A A138409 _Artur Jasinski_, Mar 19 2008