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 A158957 #7 Jul 10 2015 15:57:42 %S A158957 1671781,2637799,3117299,3933599,4640599,4652353,5178193,5518687, %T A158957 5837399,5845193,6012899,6084977,6333799,6376193,6789793,6958667, %U A158957 7129877,7565191,7803491,7826899,8027699,8367397,8421251,8905199 %N A158957 Lesser of two successive primes p1, p2, where p2-p1 (gap) includes at least one entire primeless century. %C A158957 The sequence is probably infinite. %t A158957 Transpose[Select[Partition[Prime[Range[600000]],2,1],Floor[#[[2]]/100]- Floor[ #[[1]]/100]>1&]][[1]] (* _Harvey P. Dale_, Jul 10 2015 *) %K A158957 nonn %O A158957 1,1 %A A158957 _Ki Punches_, Apr 29 2009 %E A158957 Corrected by _Ray Chandler_, Apr 30 2009