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 A071363 #14 May 03 2017 21:54:32
%S A071363 7,89,569,5689,34679,345689,1456789,23456789
%N A071363 Largest n-digit prime with strictly increasing digits.
%C A071363 Notice the terms with consecutive digits; search for 23456789 to find several related sequences including A006055, A052017 and A052077.
%e A071363 a(1) = A052015(4), a(2) = A052015(15), a(3) = A052015(35), a(4) = A052015(61), ... In short, a(n) = A052015(b(n)) with b = (4, 15, 35, 61, 81, 94, 98, 100). - _M. F. Hasler_, May 03 2017
%o A071363 (PARI) A071363(n,u=vectorv(n,i,10^(n-i)))={forvec(d=vector(n,i,[1,9]),isprime(d*u)&&n=d*u,2);n} \\ _M. F. Hasler_, May 03 2017
%Y A071363 Cf. A071362, A071360, A071361, A007810.
%Y A071363 Subsequence of A052015.
%K A071363 base,fini,full,nonn
%O A071363 1,1
%A A071363 _Rick L. Shepherd_, May 21 2002