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 A065538 #2 Mar 30 2012 17:30:37
%S A065538 11,113,1151,11519,115201,1152023,11520269,115202701,1152027101,
%T A065538 11520271019,115202710219,1152027102209,11520271022149,
%U A065538 115202710221517,1152027102215173,11520271022151733,115202710221517367
%N A065538 a(n) is smallest prime > 10*a(n-1), a(1) = 11.
%t A065538 NextPrim[n_Integer] := Block[ {k = n + 1}, While[ !PrimeQ[k], k++ ]; Return[k]]; a[1] = 11; a[n_] := NextPrim[ 10*a[n - 1]]; Table[ a[n], {n, 1, 20} ]
%Y A065538 Cf. A065122.
%K A065538 nonn
%O A065538 1,1
%A A065538 _Robert G. Wilson v_, Nov 28 2001