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 A143744 #9 Feb 16 2025 08:33:08 %S A143744 0,0,3,2,3,8,9,17,47,32,54,25,43,39,60,148,99,89,67 %N A143744 The number of steps needed to generate the next largest juggler number. %C A143744 The juggler sequence: begin with a starting value x and if x is even, x <- [sqrt(x)] and if x is odd, x <- [sqrt(x^3)] and repeat until x = 1, save the starting value, max x and the number of steps needed to reach it. %D A143744 C. Pickover, Computers and the Imagination, St. Martin's Press, NY, 1991, p. 233. %H A143744 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/JugglerSequence.html">Juggler Sequence</a> %H A143744 H. J. Smith, <a href="http://harry-j-smith-memorial.com/Juggler/JuggWhat.html">Juggler Sequence</a> %e A143744 8 is in the sequence because starting at 37 the juggler sequences maxes out at 24906114455136, a 14-digit number, after 8 steps. This is the largest juggler number found for starting values less than or equal to 37. %Y A143744 Cf. A007320, A094670, A094679, A094683, A094684, A095908. %K A143744 nonn %O A143744 1,3 %A A143744 _Harry J. Smith_, Oct 08 2008