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A075776 Numbers n such that n does not divide phi(F(n)) where F(n) denotes the n-th Fibonacci number. 0
2, 3, 4, 5, 6, 7, 8, 9, 13, 16, 17, 19, 23, 31, 32, 43, 47, 57, 59, 61, 71, 79, 83, 87, 101, 109, 129, 137, 151, 161, 183, 187, 191, 199, 213, 221, 247, 251, 271, 311, 347, 381 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..42.

PROG

(PARI) isok(n) = eulerphi(fibonacci(n)) % n; \\ Michel Marcus, Nov 29 2013

CROSSREFS

Cf. A065449.

Sequence in context: A055568 A283161 A165165 * A261556 A033088 A307498

Adjacent sequences:  A075773 A075774 A075775 * A075777 A075778 A075779

KEYWORD

easy,nonn

AUTHOR

Benoit Cloitre, Oct 09 2002

EXTENSIONS

More terms from Michel Marcus, Nov 29 2013

STATUS

approved

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Last modified April 18 07:59 EDT 2021. Contains 343084 sequences. (Running on oeis4.)