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 A183020 Largest members of k-sociable cycles of order r, with k > 1 and r > 1. 3
 8132064, 14246719968, 97998179400, 582340505600 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS 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. In this sequence, a(1), a(2) and a(4) are the largest terms of 2-sociable cycles of order 3 (or bicrowds), and a(3) is the larger term of a 3-sociable cycle of order 2 (or triamicable pair). No other terms <= 10^12. LINKS Table of n, a(n) for n=1..4. CROSSREFS Cf. A001065, A166069, A183013, A183021, A183022. Sequence in context: A206020 A263072 A353540 * A015391 A277580 A059693 Adjacent sequences: A183017 A183018 A183019 * A183021 A183022 A183023 KEYWORD nonn,more AUTHOR William Rex Marshall, Jan 08 2011 STATUS approved

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Last modified September 28 13:02 EDT 2023. Contains 365735 sequences. (Running on oeis4.)