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 A111742 #2 Mar 30 2012 17:26:19 %S A111742 3,1,3,1,3,1,3,1,3,3,1,3,9,1,9,11,3,3,3,9,3,7,9,17,1,3,1,17,1,21,7,9, %T A111742 3,9,3,1,1,7,23,3,11,1,3,1,3,3,1,7,3,3,3,3,1,11,9,3,3,1,7,9,3,9,9,9,7, %U A111742 11,3,1,21,1,3,3,1,3,3,3,17,19,3,1,11,1,17,7,1,11,3,13,11,7,3,3,1,9,3,9,9 %N A111742 Distance between k*(n-th prime) and next prime, k=10 case. %C A111742 Other cases: k=1 A001223 Differences between consecutive primes, k=2 A059787, k=3 A114245, k=4 A114246, k=5 A114247, k=6 A114248, k=7 A111739, k=8 A111740, k=9 A111741. %e A111742 a(1)=3 because prime(1)=2 and 10*2+3=23 (prime). %Y A111742 Cf. A001223, A059787, A114245, A114246, A114247, A114248, A111739, A111740, A111741. %K A111742 nonn %O A111742 1,1 %A A111742 _Zak Seidov_, Nov 18 2005