id:A066848 - OEIS Search Results

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Consider sequence of fractions A066657/A066658 produced by ratios of terms in A066720; let m = smallest integer so that all fractions 1/n, 2/n, ..., (n-1)/n have appeared when we reach A066720(m) = k; sequence gives values of k; set a(n) = -1 if some fraction i/n never appears.

+0
4

1, 2, 3, 2436, 520, 60, 308, 2436, 15867, 61800, 8096, 55620, 77077, 20216, 51675, 2296992, 21607, 15867, 185820, 481680, 140805, 226644, 145866, 1568928, 1076000, 187772, 5596587, 1831956, 715778, 3540060, 836535, 2296992, 3088008, 1129514, 7096775, 1995048, 2018646, 3159168, 13019136, 15293320, 6936667, 11250624, 6877463, 20475136, 3380040, 3986360, 1052424, 17566608, 5152350, 1076000, 3824694, 8897564, 2987239, 17600004, 24056230, 89537336, 23397531, 2791424, 5393780, 19344660, 5306268, 8679008, 126415359, 30486400, 29303235 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`3/4 does not occur until we reach A066720(401) = 2436 and then we see A066720(320)/A066720(401) = 1827/2436 = 3/4. Therefore a(4) = 2436.`
	CROSSREFS	`Cf. A066720, A066657, A066658. A066849 gives values of m.` `Sequence in context: A097549 A004909 A137321 this_sequence A125612 A038104 A097301` `Adjacent sequences: A066845 A066846 A066847 this_sequence A066849 A066850 A066851`
	KEYWORD	`nonn,nice`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Jan 21 2002`
	EXTENSIONS	`Corrected by John Layman, Feb 05 2002.` `Greatly extended by David Applegate (david(AT)research.att.com), Feb 13, 2002.`

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

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