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 A050348 #6 Dec 19 2015 13:25:06 %S A050348 1,1,1,4,4,10,7,26,22,14,34,63,74,29,105,143,223,57,296,312,320,154, %T A050348 366,617,110,769,1087,697,641,1136,1589,217,1906,3394,1483,2224,3246, %U A050348 1562,3919,417,4251,4561,3175,3858,9736,3111,6910,8772,6183,9327,794 %N A050348 Number of factorizations into distinct factors with 2 levels of parentheses indexed by prime signatures. A050347(A025487). %K A050348 nonn %O A050348 1,4 %A A050348 _Christian G. Bower_, Oct 15 1999