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A206098 Fibonacci numbers F with 3 distinct prime divisors, and F+3 or F-3 also with 3 distinct prime divisors. 0
9227465, 7778742049, 17167680177565, 1500520536206896083277, 3311648143516982017180081, 50095301248058391139327916261, 898923707008479989274290850145, 23770696554372451866815101694984845480039225387896643963981 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

9227465=5*13*141961; (9227465+2)=37*113*2207.

MATHEMATICA

Select[Fibonacci[Range[300]], Last/@FactorInteger[#]=={1, 1, 1} && (Last/@FactorInteger[#+3]=={1, 1, 1} || Last/@FactorInteger[#-3]=={1, 1, 1})&]

CROSSREFS

Cf. A000045

Sequence in context: A205615 A206599 A245746 * A105175 A212469 A234395

Adjacent sequences:  A206095 A206096 A206097 * A206099 A206100 A206101

KEYWORD

nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, Feb 03 2012

STATUS

approved

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Last modified October 31 12:53 EDT 2014. Contains 248866 sequences.