id:A015620 - OEIS Search Results

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Number of triples of different integers from [ 2,n ] with no common factors between pairs.

+0
1

0, 0, 0, 2, 2, 8, 11, 18, 20, 42, 45, 79, 88, 102, 119, 183, 193, 277, 297, 335, 363, 491, 512, 619, 664, 756, 802, 1016, 1037, 1285, 1376, 1494, 1579, 1739, 1790, 2150, 2261, 2431, 2518, 2968, 3022, 3522, 3668, 3848, 4016, 4620, 4721, 5231, 5382 (list; graph; listen)

	OFFSET	`2,4`
	CROSSREFS	`Sequence in context: A121094 A029595 A046982 this_sequence A046690 A008828 A053414` `Adjacent sequences: A015617 A015618 A015619 this_sequence A015621 A015622 A015623`
	KEYWORD	`nonn`
	AUTHOR	`Olivier Gerard (olivier.gerard(AT)gmail.com)`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research