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 A182296 #16 Feb 16 2025 08:33:13 %S A182296 509203,1330207,2251349,2554843,2924861,3177553,3292241,3580901, %T A182296 3661529,3661543,4384979,6055001,7576559,7629217,8086751,8643209, %U A182296 9053711,9203917,9545351,10219379,10645867,10913233,10913681,11694013,11942443,13161283,14608183,15627133 %N A182296 Prime Riesel numbers: primes p such that p*2^k - 1 is composite for all positive integers k. %C A182296 Primes in A101036. %H A182296 Arkadiusz Wesolowski, <a href="/A182296/b182296.txt">Table of n, a(n) for n = 1..3701</a> %H A182296 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/RieselNumber.html">Riesel Number</a> %e A182296 509203 is the first known prime p for which p*2^k - 1 is composite for all positive integers k, so a(1) = 509203. %Y A182296 Cf. A101036, A101050. %K A182296 nonn %O A182296 1,1 %A A182296 _Arkadiusz Wesolowski_, Apr 23 2012