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 A219553 #15 Dec 06 2012 12:54:15 %S A219553 6,11,12,18,56,66,105,110,130,132,139,140,185,195,197,202,261,266,313 %N A219553 Records in A219552. %C A219553 313 found at x = 79142421 under the iteration of A219303. No more entries up to x = 101890000. - _Carl R. White_, Nov 30 2012 %Y A219553 Cf. A219303, A219552, A219962. %K A219553 nonn,more %O A219553 1,1 %A A219553 _Carl R. White_, Nov 22 2012 %E A219553 a(17)-a(19) from _Carl R. White_, Nov 30 2012