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A188284 Finite sequence of numbers n such that iterations for the map r -> A061602(r) starting with n ends with the same number n. 2

%I

%S 1,2,145,169,871,872,1454,40585,45361,45362,363601

%N Finite sequence of numbers n such that iterations for the map r -> A061602(r) starting with n ends with the same number n.

%C See A173447 = the number of iterations for the map r -> A061602(r), A061602 = sum of factorials of the digits of n.

%C Superset of A014080 (factorions).

%e Number 169 is in sequence because 169 -> 363601 -> 1454 -> 169.

%Y Cf. A188283, A014080, A173447, A061602.

%K nonn,base

%O 1,2

%A _Jaroslav Krizek_, Mar 26 2011

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Last modified January 21 03:16 EST 2021. Contains 340332 sequences. (Running on oeis4.)