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 A179673 #32 Apr 03 2023 10:36:12 %S A179673 919,929,9029,9049,9059,9109,9209,9239,9319,9349,9419,9439,9479,9539, %T A179673 9619,9629,9649,9679,9689,9719,9739,9749,9769,9829,9839,9859,90149, %U A179673 90239,90289,90359,90379,90469,90679,91019,91079,91249,91369,91459 %N A179673 Canyon primes (A134971) whose first and last digits are 9. %C A179673 98765432101456789 is the largest term and the last element of this sequence. %D A179673 Proposed by Charalambos Loungrides (loungrides(at)cytanet.cy) %H A179673 Charles R Greathouse IV, <a href="/A179673/b179673.txt">Table of n, a(n) for n = 1..8480</a> %H A179673 Prime Curios, <a href="https://t5k.org/curios/page.php?number_id=10034">98765432101456789</a> %Y A179673 Cf. A000040, A134951, A134971. %K A179673 fini,nonn,base %O A179673 1,1 %A A179673 _G. L. Honaker, Jr._, Jan 08 2011 %E A179673 Edited by _N. J. A. Sloane_, Jan 09 2011 %E A179673 Extended by _D. S. McNeil_, Jan 09 2011