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 A084529 #8 Jul 29 2017 12:52:40 %S A084529 1,1,3,12,42,142,502,1702,5878 %N A084529 Number of 'prime' ground-state 3-ball juggling sequences of period n. %C A084529 This sequence counts the length n asynchronic site swaps given in A084521/A084522. %C A084529 A juggling sequence is defined as 'prime', if it does not visit any state more than once. This means that in A084523 no integer occurs twice between consecutive sevens. %D A084529 B. Polster, The Mathematics of Juggling, Springer-Verlag, 2003, pp. 50-51. %H A084529 A. Karttunen, <a href="/A084507/a084507.scm.txt">Scheme-program for counting this sequence</a> %H A084529 <a href="/index/J#Juggling">Index entries for sequences related to juggling</a> %Y A084529 First differences of A084528. Cf. A084509, A084519. %K A084529 nonn %O A084529 1,3 %A A084529 _Antti Karttunen_, Jun 02 2003