id:A015657 - OEIS Search Results

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Number of ordered 5-tuples of integers from [ 2,n ] with no common factors among triples.

+0
1

0, 0, 0, 8, 10, 51, 83, 165, 216, 531, 637, 1284, 1607, 2159, 2756, 4705, 5353, 8462, 9829, 12378, 14514, 21227, 23433, 31079, 35600, 43705, 49266, 66390, 70849, 93223, 104603, 122139, 135745, 162248, 173565, 218847, 240639, 275249, 297212 (list; graph; listen)

	OFFSET	`2,4`
	CROSSREFS	`Sequence in context: A060768 A060809 A112547 this_sequence A106131 A025634 A038288` `Adjacent sequences: A015654 A015655 A015656 this_sequence A015658 A015659 A015660`
	KEYWORD	`nonn`
	AUTHOR	`Olivier Gerard (ogerard(AT)ext.jussieu.fr)`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

AT&T Labs Research