

A065374


Smallest k such that f(f(...f(k))) > 1, where f(k) = A065371(k) is iterated n times.


4



5, 13, 29, 43, 61, 307, 383, 2689, 9209, 14897, 83557, 274679, 598333, 3516973, 11295673, 24104629
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OFFSET

1,1


COMMENTS

This sequence contains only prime numbers.  Paul Tek, Jun 10 2013


LINKS

Table of n, a(n) for n=1..16.
Paul Tek, C++ program for this sequence


EXAMPLE

a(2) = 13 because A065372(13) = 3 and A065372(i) = 1 for i < 13.
After 10 iterations of A065371 we have a sequence starting with 14896 1's followed by 6, so a(10)= 14897.


CROSSREFS

Cf. A065371, A065372, A065373.
Sequence in context: A163251 A247177 A146286 * A130066 A206258 A270106
Adjacent sequences: A065371 A065372 A065373 * A065375 A065376 A065377


KEYWORD

more,nonn


AUTHOR

Reinhard Zumkeller, Nov 02 2001


EXTENSIONS

a(14)a(16) from Paul Tek, Jun 10 2013


STATUS

approved



