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 A111737 #5 Nov 21 2013 12:48:45 %S A111737 1,2,4,2,4,2,4,2,12,4,2,6,6,8,4,4,12,2,2,4,2,2,4,4,2,4,6,6,2,4,6,4,6, %T A111737 6,6,2,2,6,4,12,12,2,12,2,6,2,6,2,16,6,6,6,8,4,4,4,16,6,14,4,8,6,8,4, %U A111737 2,12,2,8,6,2,12,6,12,2,6,16,4,2,6,8,4,6,6,14,8,6,6,2,4,18,4,4,2,4,8,6,4,4,2 %N A111737 Distance between k*(n-th prime) and next prime, k=5 case. %C A111737 Other cases: k=1 A001223 Differences between consecutive primes, k=2 A059787, k=3 A111735, k=4 A111736, k=6 A111738, k=7 A111739, k=8 A111740, k=9 A111741, k=10 A111742. %e A111737 a(1)=1 because prime(1)=2 and 5*2+1=11 %e A111737 (prime). %t A111737 NextPrime[#]-#&/@(5Prime[Range[100]]) (* _Harvey P. Dale_, Oct 21 2011 *) %Y A111737 Cf. A001223, A059787, A111735, A111736, A111738, A111739, A111740, A111741, A111742. %K A111737 nonn %O A111737 1,2 %A A111737 _Zak Seidov_, Nov 18 2005