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 A140328 #3 Mar 30 2012 18:40:45
%S A140328 2,5,8,10,13,17,18,20,25,32,50,53,58,65,98,122,125,130,137,170,242,
%T A140328 325,328,333,340,373,445,648,842,845,850,857,890,965,1165,1682,2210,
%U A140328 2213,2218,2225,2258,2330,2533,3050,4418,5777,5780,5785,5792,5825,5897,6100
%N A140328 Sum of two squares of Lucas numbers (A000032).
%C A140328 This is to A045702 as Lucas numbers (A000032) are to Fibonacci numbers A000045. Hypotenuse squared of right triangle whose legs are both Lucas numbers.
%F A140328 {k = i + j such that i is in A000032^2 and j is in A000032^2} = {k = i + j such that i is in A001254 and j is in A001254}.
%e A140328 a(1) = 2 because A001254(1) = 1^2 = 1 and 1 + 1 = 2.
%e A140328 a(17) = 125 because A001254(5) = 11^2 = 121, A001254(0) = 2^2 = 4 and 125 + 4 = 125.
%Y A140328 Cf. A000032, A001254, A045702.
%K A140328 easy,nonn
%O A140328 1,1
%A A140328 _Jonathan Vos Post_, May 26 2008