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 A194600 #27 Apr 03 2023 10:36:12
%S A194600 0,1,2,4,5,6,11,18,20,28,70,106,208,726,910,2906,7431,14073,22394,
%T A194600 41422,82587,85461,356981
%N A194600 Record values in A194591.
%C A194600 Indices of records are given by A217892.
%D A194600 Wilfrid Keller, personal communication, 2010.
%H A194600 Chris K. Caldwell, The List of Largest Known Primes, <a href="https://t5k.org/primes/page.php?id=107">1355477231 * 2^356981 + 1</a>
%H A194600 Carlos Rivera, <a href="http://www.primepuzzles.net/problems/prob_030.htm">Problem 30</a>
%e A194600 A194591(59) = 5 since A194591(109) = 6 is the next record value.
%t A194600 l = -1; Flatten[Table[k = 0; While[! PrimeQ[n*2^k - 1] && ! PrimeQ[n*2^k + 1], k++]; If[k > l, l = k, {}], {n, 10^5}]] (* _Arkadiusz Wesolowski_, Sep 04 2011 *)
%Y A194600 Cf. A194591, A194603, A194606, A194607, A194608, A194635, A194636, A194637, A194638, A194639.
%Y A194600 Cf. A103963, A103964, A076335, A180247.
%K A194600 more,nonn
%O A194600 1,3
%A A194600 _Arkadiusz Wesolowski_, Aug 30 2011
%E A194600 a(23)=A194637(22) from Wilfrid Keller, added by _Max Alekseyev_, Oct 18 2014