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 A192720 #6 Mar 31 2012 10:29:59 %S A192720 1,3,9,15,25,31,49,51,71,79,97,105,107,129,135,155,161,183,209,257, %T A192720 265,283,325,361,381,391,409,419,529,537,539,561,577,677,685,697,705, %U A192720 727,771,827,865,871,877,889,977,991 %N A192720 High-water marks of A062357: record values of prime(n)-n*(prime(n+1)-prime(n)). %C A192720 The numbers in the sequence are generated in correspondence of twin primes. I.e. a(n)=-A(062357(k)) where k is such as p(k) is the lowest of a pair of twin primes. The sequence seems to have a good linear approximation with something like 11^2*n^2-10*11^4. %Y A192720 Cf. A000040, A001223, A062357. %K A192720 nonn %O A192720 1,2 %A A192720 _Andrea Raffetti_, Jul 08 2011