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 A138434 #9 Oct 15 2017 10:15:16
%S A138434 6,54,750,4116,39930,92274,353736,617310,1606044,5121690,7149840,
%T A138434 17323326,28946820,36732234,57310296,104511654,178679730,211092330,
%U A138434 337456086,450967860,518170644,769140840,984617214,1395838620
%N A138434 a(n) = ((n-th prime)^5-(n-th prime)^3)/4.
%H A138434 Harvey P. Dale, <a href="/A138434/b138434.txt">Table of n, a(n) for n = 1..1000</a>
%F A138434 a(n) = A138406(n)/4. - _R. J. Mathar_, Oct 15 2017
%t A138434 a = {}; Do[p = Prime[n]; AppendTo[a, (p^5 - p^3)/4], {n, 1, 50}]; a
%t A138434 (#^5-#^3)/4&/@Prime[Range[30]] (* _Harvey P. Dale_, Apr 30 2017 *)
%o A138434 (PARI) forprime(p=2,1e3,print1((p^5-p^3)/4", ")) \\ _Charles R Greathouse IV_, Jul 15 2011
%K A138434 nonn,easy
%O A138434 1,1
%A A138434 _Artur Jasinski_, Mar 19 2008