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 A339133 #9 Jun 02 2025 15:23:42 %S A339133 2,4,8,6,7,24,14,12,20,21,10,6,8,24,15,16,30,12,14,48,12,10,28,60,56, %T A339133 45,8,6,12,20,30,54,60,36,18,24,120,108,80,90,96,60,24,28,96,72,42,54, %U A339133 126,108,140,126,110,84,33,28,66,21,18,66,90,66,85,132,51,52,204,51,36,78,72,40,52,60,26 %N A339133 a(n) = A339107(n)*A339107(n+1)/(A339107(n)+A339107(n+1)). %C A339133 This is the ratio of the multiplication and addition of successive terms in A339107. See that sequence for further details. %H A339133 Scott R. Shannon, <a href="/A339133/a339133.png">Line graph of the first 100000 terms</a>. %e A339133 a(1) = 2 as A339107(1) = 3 and A339107(2) = 6, and 3*6/(3+6) = 2. %Y A339133 Cf. A339107, A063647, A027750, A000040, A098550, A336957, A064413. %K A339133 nonn %O A339133 1,1 %A A339133 _Scott R. Shannon_, Nov 24 2020