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 A120824 #10 Apr 07 2025 22:56:46
%S A120824 2,6,36,122,336,82812
%N A120824 a(n) consecutive digits ascending beginning with the digit 6 give a prime.
%C A120824 Digits are in ascending order beginning with 6 and after 9 comes 0.
%C A120824 The sequence "a(n) consecutive digits descending beginning with the digit 6 give a prime" has no terms.
%C A120824 a(7) >= 100000. - _Michael S. Branicky_, Apr 07 2025
%e A120824 6 is a term since 678901 is a prime.
%t A120824 fQ[n_] := PrimeQ@ FromDigits@ Mod[5+Range@n, 10]; lst = {}; Do[ If[fQ@n, AppendTo[lst, n]; Print@n], {n, 5000}]; lst
%Y A120824 Cf. A006055, A120819, A120820, A120821, A120822, A120823, A120825, A120826, A120827.
%K A120824 nonn,base,hard,more
%O A120824 1,1
%A A120824 _Robert G. Wilson v_, Jul 05 2006
%E A120824 a(6) from _Michael S. Branicky_, Apr 05 2025