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 A033476 #4 May 19 2013 12:19:48 %S A033476 4,6,9,15,25,35,49,77,121,143,169,221,289,323,361,437,529,667,841,899, %T A033476 961,1147,1369,1517,1681,1763,1849,2021,2209,2491,2809,3127,3481,3599, %U A033476 3721,4087,4489,4757,5041,5183,5329,5767,6241,6557,6889,7387,7921,8633 %N A033476 Squares of primes or products of pairs of consecutive primes. %Y A033476 Essentially the same as A057602. %K A033476 nonn %O A033476 0,1 %A A033476 _Jeff Burch_