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 A129943 #16 Feb 16 2025 08:33:06 %S A129943 2,3,5,17,19,23,31,37,47,227,233,311,313,317,331,919,997,2371,2389, %T A129943 10601,111443,817337 %N A129943 Left truncatable primes in base 7 (written in decimal form). %C A129943 There are a total number of 22 left truncatable primes in base 7. %H A129943 I. O. Angell and H. J. Godwin, <a href="http://dx.doi.org/10.1090/S0025-5718-1977-0427213-2">On Truncatable Primes</a>, Math. Comput. 31, 265-267, 1977. %H A129943 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/TruncatablePrime.html">Truncatable Prime</a> %H A129943 <a href="/index/Tri#tprime">Index entries for sequences related to truncatable primes</a> %Y A129943 Cf. A024782, A076623. %K A129943 nonn,fini,full,base %O A129943 1,1 %A A129943 _Martin Renner_, Jun 09 2007