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 A138448 #22 Jun 08 2025 19:24:28
%S A138448 4,48,1040,7840,118096,321776,1609152,3136368,9869024,39654832,
%T A138448 59166848,171048336,316673504,421424080,718614208,1477623888,
%U A138448 2812035344,3434691376,6030558512,8540018592,10088948064,16205829952,21796024432
%N A138448 a(n) = (prime(n)^6 - prime(n)^2)/15.
%F A138448 From _Elmo R. Oliveira_, Jan 19 2023: (Start)
%F A138448 a(n) = (A030516(n) - A001248(n))/15.
%F A138448 a(n) = (2 * A138441(n))/15.
%F A138448 a(n) = (A001248(n) * (A030514(n) - 1))/15. (End)
%p A138448 A138448:=n->(ithprime(n)^6-ithprime(n)^2)/15: seq(A138448(n), n=1..40); # _Wesley Ivan Hurt_, Apr 14 2017
%t A138448 a = {}; Do[p = Prime[n]; AppendTo[a, (p^6 - p^2)/15], {n, 1, 50}]; a
%o A138448 (PARI) forprime(p=2,1e3,print1((p^6-p^2)/15", ")) \\ _Charles R Greathouse IV_, Jun 16 2011
%Y A138448 Cf. A030516, A001248, A138441, A030514.
%K A138448 nonn,easy
%O A138448 1,1
%A A138448 _Artur Jasinski_, Mar 19 2008