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A306962 Trajectory of 4 under repeated application of x -> A306958(x). 2
4, 5040, 35282, 1845540, 1884971, 7867460, 3331441, 12260, 151391, 3659790, 8044561, 2005931, 3659862, 5776650, 1572481, 2454590, 3699451, 7444810, 2434331, 12340, 5861, 1995850, 9132491, 7263470, 1366651, 484580, 3669121, 3932030, 3631052, 182981, 7257710, 1844741, 2434340, 16651, 332660, 303931, 3630971, 4386251, 2001700, 604904, 3790082, 6048812, 3785141, 2455220, 65791, 4415050, 70572, 1239931, 7259150, 4294181, 5453390, 3695761, 4566970, 4571281, 2454590, 3699451, 7444810, 2434331, 12340, 5861 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

After 20 iterations the trajectory a cycle of length 39 starting with 5861.

More then the usual number of terms are shown in order to display a full cycle.

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

Table of n, a(n) for n=1..60.

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. A306957, A306958, A306959, A306960, A306961.

Sequence in context: A127235 A274972 A203036 * A102205 A283663 A046360

Adjacent sequences:  A306959 A306960 A306961 * A306963 A306964 A306965

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Mar 18 2019

STATUS

approved

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Last modified November 17 11:02 EST 2019. Contains 329226 sequences. (Running on oeis4.)