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 A075107 #10 Jan 15 2022 23:32:14 %S A075107 0,0,0,2,0,1,1,0,5,2,0,3,2,0,0,3,3,2,0,2,1,3,0,2,2,2,0,1,1,1,2,5,3,0, %T A075107 16,2,4,6,0,4,16,9,2,0,1,1,1,1,0,4,2,4,8,0,2,5,2,8,0,9,3,4,5,2,0,1,1, %U A075107 1,1,1,0,5,7,3,2,4,0,9,4,1,2,3,0,4,1,2,1 %N A075107 Number of steps to reach the first integer (= A075108(n)) starting with n/floor(log_2(n)) and iterating the map x -> x*ceiling(x), or -1 if no integer is ever reached. %C A075107 Starting values given by A075105(n)/A075106(n). %e A075107 a(5)=2 since 5/floor(log_2(5)) = 5/2 -> 15/2 -> 60 = A075108(5). %Y A075107 Cf. A068119, A073524, A075102, A075120. %K A075107 nonn %O A075107 2,4 %A A075107 _Reinhard Zumkeller_, Sep 02 2002 %E A075107 More terms from _Jinyuan Wang_, Jan 15 2022