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A074316 Abundant Fibonacci numbers. 2
144, 2584, 46368, 832040, 14930352, 102334155, 267914296, 4807526976, 86267571272, 1548008755920, 498454011879264, 23416728348467685, 160500643816367088, 2880067194370816120, 51680708854858323072 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..150

EXAMPLE

a(1)=144 because the sum of the aliquot divisors of 144 (which is a Fibonacci number) is 1+2+3+4+6+8+9+12+16+18+24+36+48+72=259, which is more than 144, hence 144 is abundant. 144 is the first abundant Fibonacci number.

MATHEMATICA

Select[Fibonacci[Range[100]], DivisorSigma[1, #]>2#&] (* Harvey P. Dale, Jul 27 2011 *)

CROSSREFS

Intersection of A000045 and A005101.

Sequence in context: A232819 A185745 A075739 * A264107 A231584 A221695

Adjacent sequences:  A074313 A074314 A074315 * A074317 A074318 A074319

KEYWORD

nonn

AUTHOR

Shyam Sunder Gupta, Sep 22 2002

STATUS

approved

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Last modified November 21 04:41 EST 2019. Contains 329350 sequences. (Running on oeis4.)