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 A134951 #25 Apr 03 2023 10:36:11 %S A134951 131,151,181,191,1231,1291,1321,1361,1381,1451,1471,1481,1531,1571, %T A134951 1621,1721,1741,1831,1861,1871,1931,1951,12391,12421,12451,12491, %U A134951 12541,12641,12671,12721,12781,12791,12821,12841,12941,13421,13451,13591,13681 %N A134951 Mountain primes. %C A134951 Mountain numbers that are prime numbers. %C A134951 This sequence has 2620 terms. The largest is 134567897654321. - _Jud McCranie_, Feb 23 2009, Feb 24 2009 %D A134951 Chris K. Caldwell and G. L. Honaker, Jr; Prime Curios!, The Dictionary of Prime Number Trivia, CreateSpace (2009), p. 69, 216, 217. %H A134951 Giovanni Resta, <a href="/A134951/b134951.txt">Table of n, a(n) for n = 1..2620</a> (full sequence) %H A134951 G. L. Honaker, Jr. and Chris K. Caldwell, <a href="https://t5k.org/curios/page.php?number_id=8409">Prime Curios! 2620</a> %F A134951 A000040 INTERSECT A134941. %F A134951 A178333(a(n))*A010051(a(n)) = 1. - _Reinhard Zumkeller_, May 25 2010 %e A134951 The A-number of this sequence (A134951) is a mountain prime because 134951 is a mountain number and it is also a prime number. %e A134951 . . . 9 . . %e A134951 . . . . . . %e A134951 . . . . . . %e A134951 . . . . . . %e A134951 . . . . 5 . %e A134951 . . 4 . . . %e A134951 . 3 . . . . %e A134951 . . . . . . %e A134951 1 . . . . 1 %Y A134951 Cf. A000040, A134941. %K A134951 fini,full,nonn,base %O A134951 1,1 %A A134951 _Omar E. Pol_, Nov 25 2007 %E A134951 Edited by _Omar E. Pol_, Feb 26 2009 %E A134951 More terms from _Max Alekseyev_, Feb 06 2010 %E A134951 Minor edit and reference added by _Omar E. Pol_, Mar 25 2011