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%I #13 Aug 08 2024 14:49:40
%S 339026688000000,377975808000000,424639621324800,483184764518400,
%T 453984583680000
%N A cycle of length 5 when iterating x <- phi(sigma(x)).
%C The first term in the sequence is the smallest member of the cycle. This is the 5-cycle with the smallest members. Similar cycles are in the crossreferences.
%e phi(sigma(339026688000000)) = 377975808000000, ... phi(sigma(453984583680000)) = 339026688000000, so 339026688000000 is in the sequence.
%Y Cf. A095955, A095956, A001229, A373435, A373453, A373454, A375013, A375014.
%K nonn,fini,full
%O 1,1
%A _Jud McCranie_, Jul 27 2024