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 A069472 #11 Feb 14 2015 01:16:35 %S A069472 29,101,179,9419,909287,325267931,678771479,1107819732821, %T A069472 170669145704411,3324648277099157 %N A069472 Smallest twin prime in a sequence of exactly n disjoint twin pairs, sandwiched between non-twins. %H A069472 C. Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_122.htm">Prime Puzzles</a> %e A069472 The first sequence of primes containing exactly 1 pair of twins, sandwiched between non-twins, is 29, 31. The first containing exactly 2 disjoint pairs similarly sandwiched is 101, 103, 107, 109. The first containing exactly 3 disjoint pairs similarly sandwiched is 179, 181, 191, 193, 197, 199. So the sequence starts 29, 101, 179. %Y A069472 Cf. A035789, A035790, A035791. %K A069472 nonn,more %O A069472 1,1 %A A069472 _Neil Fernandez_, Mar 25 2002 %E A069472 More terms from Lévai Gábor (gablevai(AT)vipmail.hu), Jan 11 2005