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 A143743 #12 Feb 16 2025 08:33:08 %S A143743 1,1,2,3,5,14,27,82,271,5929,8201,11723,23889,45391,972463,1909410, %T A143743 1952329,2855584,7996276 %N A143743 The number of digits in the next largest juggler number. %C A143743 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 A143743 C. Pickover, Computers and the Imagination, St. Martin's Press, NY, 1991, p. 233. %H A143743 H. J. Smith, <a href="http://harry-j-smith-memorial.com/Juggler/JuggWhat.html">Juggler Sequence</a> %H A143743 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/JugglerSequence.html">Juggler Sequence</a> %e A143743 14 is in the sequence because starting at 37 the juggler sequence 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 A143743 Cf. A007320, A094670, A094679, A094683, A094684, A095908. %K A143743 nonn,base %O A143743 1,3 %A A143743 _Harry J. Smith_, Oct 08 2008