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A154908 Highly composite Fibonacci numbers. 2
1, 2, 8, 144, 2584, 46368, 14930352, 4807526976, 1548008755920, 498454011879264, 160500643816367088, 2880067194370816120, 51680708854858323072, 16641027750620563662096, 5358359254990966640871840 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Positive Fibonacci numbers with record values for the number of divisors.

LINKS

Table of n, a(n) for n=1..15.

EXAMPLE

144 is in the sequence because it is a Fibonacci number with 15 divisors and all smaller Fibonacci numbers have fewer divisors. - Emeric Deutsch, Jan 20 2009

MAPLE

with(numtheory): with(combinat): a := proc (n) if n = 1 then 1 else if max(seq(tau(fibonacci(j)), j = 1 .. n-1)) < tau(fibonacci(n)) then fibonacci(n) else end if end if end proc: seq(a(n), n = 1 .. 170); # Emeric Deutsch, Jan 20 2009

CROSSREFS

Cf. A000005, A000045, A002182, A063375, A154906, A154907.

Sequence in context: A140050 A318038 A304798 * A166356 A009817 A124105

Adjacent sequences:  A154905 A154906 A154907 * A154909 A154910 A154911

KEYWORD

nonn

AUTHOR

Omar E. Pol, Jan 18 2009, Jan 20 2009

EXTENSIONS

Extended by Emeric Deutsch, Jan 20 2009

STATUS

approved

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Last modified July 16 23:49 EDT 2019. Contains 325092 sequences. (Running on oeis4.)