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 A086007 #8 Jul 08 2024 04:34:34 %S A086007 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1, %T A086007 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, %U A086007 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3 %N A086007 Number of semiprime triples <= n. %C A086007 A semiprime triple is <= n if its least member is <= n; %C A086007 if a(n-1)<a(n) then (n,n+1,n+2) is a semiprime triple, A086005(a(n))=n+1. %Y A086007 Cf. A001358, A056809, A086005. %K A086007 nonn %O A086007 1,85 %A A086007 _Reinhard Zumkeller_, Jul 07 2003