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A072397 Smallest Fibonacci number with n prime factors when counted with multiplicity. 5
2, 21, 8, 6765, 2584, 144, 832040, 86267571272, 46368, 14930352, 30960598847965113057878492344, 4807526976, 160500643816367088, 498454011879264, 16641027750620563662096, 51680708854858323072, 34507973060837282187130139035400899082304280 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
a(n) = A000045(A072396(n)). - Alois P. Heinz, Apr 10 2018
EXAMPLE
21 is the 2nd term because 21 is the smallest Fibonacci number having 2 prime factors.
CROSSREFS
Row n=1 of A303216.
Sequence in context: A105666 A058261 A298822 * A077208 A321534 A212483
KEYWORD
nonn
AUTHOR
Shyam Sunder Gupta, Jul 21 2002
EXTENSIONS
a(17) from Alois P. Heinz, Apr 10 2018
STATUS
approved

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Last modified June 13 17:15 EDT 2024. Contains 373391 sequences. (Running on oeis4.)