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Number of iterations of A065371 starting at n until 1 is reached.
4

%I #9 Jan 02 2021 21:08:22

%S 0,1,1,1,2,1,2,1,1,2,2,1,3,2,2,1,3,1,3,2,2,2,3,1,2,3,1,2,4,2,3,1,2,3,

%T 2,1,3,3,3,2,3,2,5,2,2,3,2,1,2,2,3,3,4,1,2,2,3,4,3,2,6,3,2,1,3,2,2,3,

%U 3,2,4,1,4,3,2,3,2,3,4,2,1,3,3,2,3,5,4,2,4,2,3,3,3,2,3,1,2,2,2,2,3,3,4,3,2

%N Number of iterations of A065371 starting at n until 1 is reached.

%H Paul Tek, <a href="/A065373/b065373.txt">Table of n, a(n) for n = 1..10000</a>

%e a(15) = 2 because A065371(A065371(15)) = A065371(2) = 1.

%Y Cf. A065371, A065372, A065374.

%K nonn

%O 1,5

%A _Reinhard Zumkeller_, Nov 01 2001