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A066670 Primes arising in A066669: the only odd prime divisor of EulerPhi[A066669(n)]. 2
3, 3, 5, 3, 3, 3, 3, 5, 11, 5, 3, 3, 7, 5, 3, 3, 3, 5, 3, 5, 3, 11, 23, 5, 3, 13, 5, 3, 7, 29, 3, 5, 11, 3, 3, 5, 3, 5, 41, 3, 7, 5, 11, 3, 11, 23, 3, 5, 3, 3, 13, 53, 5, 3, 7, 11, 7, 29, 3, 5, 3, 5, 17, 11, 3, 23, 3, 7, 37, 5, 3, 3, 13, 5, 5, 41, 83, 3, 43, 7, 5, 29, 11, 89, 3, 11, 5, 23, 3, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..90.

EXAMPLE

A066669(9)=23,Phi[23]=2.11, so a(9)=11

CROSSREFS

Cf. A000010, A066669-A066673, A065966.

Sequence in context: A136549 A077924 A003569 * A013606 A206550 A190911

Adjacent sequences:  A066667 A066668 A066669 * A066671 A066672 A066673

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Dec 18 2001

STATUS

approved

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Last modified May 24 19:33 EDT 2013. Contains 225630 sequences.