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 A118018 #8 Feb 16 2025 08:33:00 %S A118018 5,36,723 %N A118018 Indices of prime complementary Bell numbers (in absolute value). %H A118018 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/ComplementaryBellNumber.html">Complementary Bell Number</a> %H A118018 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/IntegerSequencePrimes.html">Integer Sequence Primes</a> %t A118018 Select[Range[1000], PrimeQ[Abs[BellB[#, -1]]] &] (* _Vaclav Kotesovec_, Sep 09 2019 *) %Y A118018 Cf. A000587, A118019. %K A118018 nonn,more,bref %O A118018 1,1 %A A118018 _Eric W. Weisstein_, Apr 10 2006