id:A134413 - OEIS Search Results

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a(n) = the denominator of (sum{k=1 to n} 1/A134411(k)).

+0
3

1, 1, 1, 2, 6, 6, 6, 6, 6, 3, 6, 6, 6, 3, 12, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 12, 12, 12, 3, 2, 2, 6, 6, 6, 3, 24, 8, 8, 24, 24, 24, 24, 24, 24, 24, 24, 8, 8, 40, 40, 120, 120, 120, 120, 120, 120, 120, 120, 40, 40, 40, 120, 120, 120, 120, 120, 120, 120, 120 (list; graph; listen)

	OFFSET	`1,4`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	MATHEMATICA	`a = {1}; s = 1; Do[i = 1; While[ ! PrimeQ[Numerator[s + 1/i]], i++ ]; s = s + 1/i; AppendTo[a, Denominator[s]], {80}]; a - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Oct 27 2007`
	CROSSREFS	`Cf. A134411, A134412.` `Sequence in context: A123945 A097466 A141624 this_sequence A134201 A137479 A048765` `Adjacent sequences: A134410 A134411 A134412 this_sequence A134414 A134415 A134416`
	KEYWORD	`frac,nonn`
	AUTHOR	`Leroy Quet Oct 24 2007`
	EXTENSIONS	`More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Oct 27 2007`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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