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 A183023 #6 Mar 30 2012 18:39:49 %S A183023 1,6,14,28,62,120,124,189,254,496,508,672,2032,8128,8184,10540,16382, %T A183023 30240,32760,32764,38080,90272,131056,262142,523776,524224,524284, %U A183023 654080,898560,1048574,1124352,2097136,2097148,2178540,2234232,8388544 %N A183023 Largest members of fully k-sociable cycles of order r. %C A183023 A fully k-sociable (or fully multisociable) cycle of order r consists of r distinct positive integers such that the sum of all the divisors of each is equal to k times the next term in the cycle, with k a fixed positive integer. %C A183023 A183024(n) gives the multiplicity of the cycle with largest term a(n). %C A183023 A183025(n) gives the order of the cycle with largest term a(n). %C A183023 If examples of two or more fully 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 A183024. (No such examples are known. Do any exist?) %C A183023 a(8)=189 and a(78)=222339630960 are the largest terms of mixed parity cycles, and a(78) is the largest term of a fully 4-sociable cycle of order 34 (the longest known cycle). %Y A183023 Cf. A000203, A000396, A007691, A183024 (multiplicities), A183025 (orders), A183029. %K A183023 nonn %O A183023 1,2 %A A183023 _William Rex Marshall_, Jan 08 2011