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 A084512 #8 Jul 29 2017 13:02:20 %S A084512 3,42,441,522,531,4440,4512,4530,5241,5340,5511,5520,6222,6231,6312, %T A084512 6330,6411,6420,44502,45141,45501,46122,46131,46302,46401,52440,52512, %U A084512 52530,53502,55140,55500,56112,56130,56202,56400,62241,62340,62511 %N A084512 Successively larger 3-ball indecomposable ground-state site swaps of A084511 in concatenated decimal notation. %C A084512 Note that this decimal representation works only up to the A084510(A084517(10))-1 = 2748th term which is 99600000, after which follows the 2749th solution 10,2,2,2,2,2,2,2 which would be usually represented as "A2222222". %H A084512 A. Karttunen, <a href="/A084507/a084507.scm.txt">Scheme-program for computing this sequence</a> %H A084512 <a href="/index/J#Juggling">Index entries for sequences related to juggling</a> %Y A084512 The number of terms of length n is given by A084519. %Y A084512 Subset of A084502. Cf. A084522. %K A084512 nonn,fini,base %O A084512 1,1 %A A084512 _Antti Karttunen_, Jun 02 2003