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 A183013 #5 Mar 30 2012 18:39:49 %S A183013 6,28,120,284,496,672,1210,2924,5564,6368,8128,10856,14595,15472, %T A183013 18416,30240,32760,66992,71145,76084,87663,88730,123152,124155,139815, %U A183013 153176,168730,176336,180848,202444,203432,365084,389924,399592,430402 %N A183013 Largest members of k-sociable cycles of order r. %C A183013 A k-sociable (or multisociable) cycle of order r consists of r distinct positive integers such that the sum of the aliquot divisors (or proper divisors) of each is equal to k times the next term in the cycle, where k (the multiplicity) is a fixed positive integer. %C A183013 A183014(n) gives the multiplicity of the cycle with largest term a(n). %C A183013 A183015(n) gives the order of the cycle with largest term a(n). %C A183013 If examples of two or more multisociable cycles with the same largest term exist, the largest term is repeated in this sequence, and corresponding multiplicities listed in order of increasing size in A183014. (No such examples are known. Do any exist?) %Y A183013 Cf. A000396, A001065, A002046, A007691, A183014 (multiplicities), A183015 (orders), A183019, A183020. %K A183013 nonn %O A183013 1,1 %A A183013 _William Rex Marshall_, Jan 08 2011