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 A103463 #27 Feb 16 2025 08:32:56 %S A103463 0,3,6,6,17,7,15,10,24,9,32,8,26,22,25,11,43,14,37,27,37,17,53,20,39, %T A103463 28,46,19 %N A103463 Length of the largest left-truncatable prime (in base n). %C A103463 The next term (base 30) will be difficult to calculate because there are over a trillion left-truncatable primes in that base for each of digit-lengths 29-34. Nevertheless, the largest left-truncatable prime in this base can be estimated by theory to have a length of about 82. [_Hans Havermann_, Aug 16 2011] %H A103463 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 A103463 Roman Maeder, <a href="https://community.wolfram.com/groups/-/m/t/1569707">A Prime Pencil</a> %H A103463 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/TruncatablePrime.html">Truncatable Prime</a>. %H A103463 <a href="/index/Tri#tprime">Index entries for sequences related to truncatable primes</a> %Y A103463 Cf. A076623, A103443. %K A103463 nonn,base,more %O A103463 2,2 %A A103463 _Martin Renner_, Mar 21 2005, Feb 20 2008, Apr 20 2008 %E A103463 a(24)-a(29) from _Hans Havermann_, Aug 16 2011