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A306959
The unique cycle of length 4 under iteration of the map x -> A306958(x).
5
756822, 2600820, 1965783, 6230170
OFFSET
1,1
REFERENCES
P. Kiss, A generalization of a problem in number theory, Math. Sem. Notes Kobe Univ., 5 (1977), no. 3, 313-317. MR 0472667 (57 #12362).
LINKS
P. Kiss, A generalization of a problem in number theory, [Hungarian], Mat. Lapok, 25 (No. 1-2, 1974), 145-149.
H. J. J. te Riele, Iteration of number-theoretic functions, Nieuw Archief v. Wiskunde, (4) 1 (1983), 345-360. See Example I.1.d.
CROSSREFS
Cf. A306958.
Sequence in context: A172769 A172837 A172885 * A137468 A183825 A254074
KEYWORD
nonn,base,fini,full
AUTHOR
N. J. A. Sloane, Mar 18 2019
STATUS
approved