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 A131686 #2 Mar 31 2012 10:22:04
%S A131686 208,373,653,989,1469,2189,2981,4061,5381,6701,8069,9917,12029,14069,
%T A131686 16709,19541,22061,24821,27989,31421,35789,40661,45029,49589,53549,
%U A131686 56909,62837,69389,76709,84149,93581,100253,107741,115541,124109,131837
%N A131686 Sum of squares of five consecutive primes.
%e A131686 a(1)=208 because 2^2+3^2+5^2+7^2+11^2=208
%t A131686 a = 2; Table[Prime[n]^a + Prime[n + 1]^a + Prime[n + 2]^a + Prime[n + 3]^a + Prime[n + 4]^a, {n, 1, 100}]
%Y A131686 Cf. A034963, A133524, A133525, A133526, A133527, A133528, A133529, A133530, A133531, A133532, A069484, A133534, A133535, A133536, A133537, A034964, A133539, A133540, A133541, A133542, A133543.
%K A131686 nonn
%O A131686 1,1
%A A131686 _Artur Jasinski_, Sep 14 2007