A074316 Abundant Fibonacci numbers.

144, 2584, 46368, 832040, 14930352, 102334155, 267914296, 4807526976, 86267571272, 1548008755920, 498454011879264, 23416728348467685, 160500643816367088, 2880067194370816120, 51680708854858323072

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 A367702

Adjacent sequences: A074313 A074314 A074315 * A074317 A074318 A074319

Keyword

nonn

Author

Shyam Sunder Gupta, Sep 22 2002

Status

approved