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 A103798 #11 Jan 16 2020 08:43:37 %S A103798 3,7,11,27,31,47,51,67,107,123,135,151,159,163,175,211,251,259,279, %T A103798 295,479,527,539,607,619,631,771,783,847,999,1035,1051,1071,1183,1279, %U A103798 1295,1299,1323,1375,1399,1411,1439,1451,1479,1571,1691,1715,1759,1787,1991 %N A103798 Integers k such that A019565(k)-1 and A019565(k)+1 are both primes. %H A103798 Amiram Eldar, <a href="/A103798/b103798.txt">Table of n, a(n) for n = 1..10000</a> %p A103798 A019565(3) = 6, 5 and 7 are twin primes, so a(1) = 3. %p A103798 A019565(7) = 30, 29 and 31 are twin primes, so a(2) = 7. %Y A103798 Cf. A019565, A103796, A103797. %K A103798 easy,nonn %O A103798 1,1 %A A103798 _Lei Zhou_, Feb 22 2005