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 A176024 #37 Feb 16 2025 08:33:12 %S A176024 82,37765 %N A176024 Numbers k such that the reverse concatenation of the first k integers (A000422(k)) is a prime. %C A176024 a(1) was pointed out by _Artur Jasinski_, Mar 30 2008 (see A000422). %C A176024 a(2) was found by _Eric W. Weisstein_, Apr 06 2010. %C A176024 a(3) > 84300. - _Tyler Busby_, Feb 21 2023 %H A176024 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/ConsecutiveNumberSequences.html">Consecutive Number Sequences</a> %H A176024 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/IntegerSequencePrimes.html">Integer Sequence Primes</a> %H A176024 <a href="/index/Mo#MWP">Index entries for sequences related to Most Wanted Primes video</a> %e A176024 a(1) is 82 since the 155-digit number 828180...54321 is prime. %e A176024 a(2) is 37765 since the 177719-digit number 377653776437763...54321 is (a probable) prime. %Y A176024 Cf. A000422, A007908, A176942. %K A176024 nonn,hard,more,base,bref %O A176024 1,1 %A A176024 _Eric W. Weisstein_, Apr 06 2010 %E A176024 Edited by _N. J. A. Sloane_, Dec 03 2021