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 A084720 #7 Aug 25 2014 12:20:16 %S A084720 5,11,19,23,29,41,59,71,89,109,131,181,239,271,359,379,419,461,503, %T A084720 599,701,719,811,839,929,991,1259,1319,1481,1559,1721,1979,2069,2161, %U A084720 2351,2549,2729,2861,2969,3023,3079,3191,3359,3539,3659,4079,4159,4289,4421 %N A084720 Primes p such that p+1 is a product of two or more consecutive integers. %e A084720 59 is a member as 60 = 3*4*5, 89 is a member as 90 = 9*10. %Y A084720 Cf. A045619. %K A084720 nonn %O A084720 1,1 %A A084720 _Amarnath Murthy_ and Meenakshi Srikanth ((menakan_sAT)yahoo.com), Jun 11 2003 %E A084720 More terms from _David Wasserman_, Jan 03 2005