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 A070522 #4 Oct 15 2013 22:31:19
%S A070522 1,4,31,50,16105,157,25646167,130322,148048057,683705,846949229880161,
%T A070522 1872793,23127577557875340733,6177695707,23304888110401,
%U A070522 62259690411362,21930887362370823132822661921,51520147381
%N A070522 Value of n-th cyclotomic polynomial at the n-th prime.
%F A070522 a(n)=Cyclotomic[n, Prime[n]]
%e A070522 n=5: Cyclotomic[5,x]=1+x+xx+xxx+xxxx; at x=p(5)=11 it gives a(5)=16105.
%t A070522 Table[Cyclotomic[w, Prime[w]], {w, 1, 20}]
%Y A070522 Cf. A070518-A070521.
%K A070522 nonn
%O A070522 1,2
%A A070522 _Labos Elemer_, May 02 2002