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 A272984 #12 May 21 2016 23:32:57 %S A272984 163,186,248,339,366,543,558,590,617,623,651,676,691,695,722,756,764, %T A272984 798,848,854,974,1000,1084,1103,1104,1114,1129,1130,1211,1235,1246, %U A272984 1249,1254,1257,1262,1265,1266,1273,1342,1363,1408,1433,1445,1456,1475,1476,1574 %N A272984 Positions of zero terms in A272314. %H A272984 Peter J. C. Moses, <a href="/A272984/b272984.txt">Table of n, a(n) for n = 1..400</a> %Y A272984 Cf. A067128, A272314, A272901. %K A272984 nonn %O A272984 1,1 %A A272984 _Peter J. C. Moses_ and _Vladimir Shevelev_, May 12 2016