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 A218557 #6 Nov 02 2012 17:11:57 %S A218557 2,2,3,5,7,11,19,29,47,79,127,199,331,521,853,1367,2207,3571,5779, %T A218557 9349,15131,24481,39607,64081,103687,167771,271451,439217,710663, %U A218557 1149857,1860503,3010349,4870861,7881221,12752053,20633279,33385291,54018521,87403831 %N A218557 Smallest prime >= n-th Lucas number. %e A218557 a(6) = 19 because 19 is the smallest prime not less than 18 (the 6th Lucas number). %t A218557 NextPrime/@(LucasL[Range[0,50]]-1) %Y A218557 Cf. A000204, A138185. %K A218557 nonn %O A218557 0,1 %A A218557 _Michel Lagneau_, Nov 02 2012