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A090207 Number of factors of n-th nonprime Fibonacci number. 0
1, 1, 1, 3, 2, 2, 2, 6, 2, 3, 3, 5, 2, 4, 3, 2, 9, 3, 2, 4, 4, 7, 2, 4, 3, 2, 3, 10, 3, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..29.

FORMULA

F(0) = 0; F(1) = 1; F(n) = F(n-1) + F(n-2); F(0:9) = 0, 1, 1, 2, 3, 5, 8, 13, 21, 34 The nonprime numbers are: 0, 1, 1, 8, 21, 34 which have number of factors: 1, 1, 1, 3, 2, 2

CROSSREFS

Cf. A090206, A000045.

Sequence in context: A175333 A130845 A134653 * A202538 A239736 A065437

Adjacent sequences:  A090204 A090205 A090206 * A090208 A090209 A090210

KEYWORD

easy,nonn

AUTHOR

Felix Tubiana (fat2(AT)columbia.edu), Jan 22 2004

STATUS

approved

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Last modified December 15 20:00 EST 2019. Contains 330000 sequences. (Running on oeis4.)