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 A127889 #18 Feb 26 2024 01:58:54 %S A127889 2,23,233,2333,23333,233993,2339933,23399339 %N A127889 Smallest n-digit right-truncatable prime. %C A127889 Agrees with A088603 for 8 terms, but this sequence ends there while A088603 continues. %C A127889 Right-truncatable means that the integer part of successive divisions by 10 always yields primes (or zero). - _M. F. Hasler_, Nov 07 2018 %H A127889 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 A127889 <a href="/index/Tri#tprime">Index entries for sequences related to truncatable primes</a> %o A127889 (PARI) A127889=vector(8, n, p=concat(apply(t->primes([t, t+1]*10), if(n>1, p))); p[1]) \\ _M. F. Hasler_, Nov 07 2018 %Y A127889 Cf. A024770, A050986, A088603, A127890. %K A127889 base,nonn,fini,full %O A127889 1,1 %A A127889 _Ray Chandler_, Feb 04 2007