id:A015627 - OEIS Search Results

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Quadruples of different integers from [ 2,n ] with no global factor.

+0
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0, 0, 0, 1, 5, 15, 34, 69, 121, 205, 314, 479, 679, 961, 1290, 1745, 2239, 2919, 3650, 4599, 5619, 6949, 8290, 10057, 11861, 14105, 16418, 19343, 22165, 25819, 29424, 33799, 38199, 43631, 48780, 55325, 61649, 69199, 76632, 85771, 94235, 104895 (list; graph; listen)

	OFFSET	`2,5`
	CROSSREFS	`Sequence in context: A026101 A084288 A083049 this_sequence A072186 A051807 A034052` `Adjacent sequences: A015624 A015625 A015626 this_sequence A015628 A015629 A015630`
	KEYWORD	`nonn`
	AUTHOR	`Olivier Gerard (ogerard(AT)ext.jussieu.fr)`

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Last modified July 4 13:19 EDT 2008. Contains 140839 sequences.

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