id:A015653 - OEIS Search Results

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Number of ordered 5-tuples of integers from [ 1,n ] with no common factors among quadruples.

+0
1

1, 4, 15, 36, 95, 162, 345, 555, 942, 1376, 2277, 3049, 4694, 6216, 8560, 11077, 15491, 18956, 25626, 31254, 39682, 47942, 61624, 71912, 89989, 105658, 127911, 148410, 181397, 204777, 247269, 282117, 329934, 373740, 438398, 487156 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A054556 A113693 A077414 this_sequence A106199 A113289 A033813` `Adjacent sequences: A015650 A015651 A015652 this_sequence A015654 A015655 A015656`
	KEYWORD	`nonn`
	AUTHOR	`Olivier Gerard (olivier.gerard(AT)gmail.com)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research