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 A117730 Numbers for which the largest proper divisor is a Fibonacci number. 1
 2, 3, 4, 5, 6, 7, 9, 10, 11, 13, 15, 16, 17, 19, 23, 25, 26, 29, 31, 37, 39, 41, 42, 43, 47, 53, 59, 61, 63, 65, 67, 68, 71, 73, 79, 83, 89, 91, 97, 101, 103, 107, 109, 110, 113, 127, 131, 137, 139, 143, 149, 151, 157, 163, 165, 167, 169, 173, 178, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Amiram Eldar, Table of n, a(n) for n = 1..10000 EXAMPLE 275 is in the sequence because the largest proper divisor is 55 and 55 is a Fibonacci number. MATHEMATICA fibs=Fibonacci[Range[25]]; Select[Range[2, 500], MemberQ[fibs, Last[Most[Divisors[#]]]]&] (* Harvey P. Dale, Dec 20 2010 *) CROSSREFS Cf. A000040, A000045, A032742. Sequence in context: A062462 A033948 A285514 * A193838 A174328 A272570 Adjacent sequences: A117727 A117728 A117729 * A117731 A117732 A117733 KEYWORD nonn AUTHOR Luc Stevens (lms022(AT)yahoo.com), Apr 13 2006 EXTENSIONS Corrected and additional terms provided by Harvey P. Dale, Dec 20 2010 Offset corrected by Amiram Eldar, Jul 16 2022 STATUS approved

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Last modified November 27 06:50 EST 2022. Contains 358362 sequences. (Running on oeis4.)