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 A111738 #2 Mar 30 2012 17:26:19 %S A111738 1,1,1,1,1,1,1,13,1,5,5,1,5,5,1,13,5,1,7,5,1,5,1,7,5,1,1,1,5,5,7,1,1, %T A111738 5,13,1,5,5,7,1,13,1,5,5,5,7,11,23,5,7,1,5,1,5,1,1,5,1,1,7,1,1,5,1,1, %U A111738 5,1,5,1,5,11,7,1,1,7,11,5,1,5,5,7,5,5,11,13,1,5,7,1,11,1,5,5,7,5,1,7,11,25 %N A111738 Distance between k*(n-th prime) and next prime, k=6 case. %C A111738 Other cases: k=1 A001223 Differences between consecutive primes, k=2 A059787, k=3 A111735, k=4 A111736, k=5 A111737, k=7 A111739, k=8 A111740, k=9 A111741, k=10 A111742. %e A111738 a(1)=1 because prime(1)=2 and 6*2+1=13 %e A111738 (prime). %Y A111738 Cf. A001223, A059787, A111735, A111736, A111737, A111739, A111740, A111741, A111742. %K A111738 nonn %O A111738 1,8 %A A111738 _Zak Seidov_, Nov 18 2005