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 A050357 #6 Dec 19 2015 13:29:49 %S A050357 1,1,4,7,16,40,64,208,73,256,292,1024,544,1024,1840,4864,3472,4096, %T A050357 10624,4936,22528,1015,13552,20224,16384,57856,36976,102400,9328, %U A050357 89344,110848,65536,302080,246784,458752,70480,546304,52996,581632 %N A050357 Number of ordered factorizations with 2 levels of parentheses indexed by prime signatures. %Y A050357 A050356(A025487). %K A050357 nonn %O A050357 1,3 %A A050357 _Christian G. Bower_, Oct 15 1999