id:A107038 - OEIS Search Results

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First differences of indices of square-free Fibonacci numbers.

+0
2

1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 3, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 3, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 1, 2, 1, 1, 1, 1 (list; graph; listen)

	OFFSET	`0,5`
	COMMENT	`First differences of A037918.`
	MAPLE	`with(numtheory): with(combinat): a:=proc(n) if mobius(fibonacci(n))<>0 then n else fi end:A:=[seq(a(n), n=1..180)]:seq(A[j]-A[j-1], j=2..nops(A)); (Deustch)`
	CROSSREFS	`Cf. A000045.` `Sequence in context: A130782 A055457 A032542 this_sequence A043278 A125238 A025896` `Adjacent sequences: A107035 A107036 A107037 this_sequence A107039 A107040 A107041`
	KEYWORD	`nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), May 09 2005`
	EXTENSIONS	`More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), May 30 2005`

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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.

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