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A015633 Number of ordered triples of integers from [ 2,n ] with no global factor. +0
1
0, 2, 5, 14, 21, 41, 59, 89, 117, 171, 209, 286, 347, 432, 516, 651, 744, 914, 1042, 1219, 1382, 1634, 1806, 2091, 2323, 2629, 2895, 3300, 3562, 4026, 4386, 4843, 5249, 5802, 6204, 6869, 7380, 8025, 8569, 9388, 9928, 10830, 11516, 12347, 13104 (list; graph; listen)
OFFSET

2,2

CROSSREFS

Sequence in context: A131356 A089410 A118670 this_sequence A131661 A076664 A049939

Adjacent sequences: A015630 A015631 A015632 this_sequence A015634 A015635 A015636

KEYWORD

nonn

AUTHOR

Olivier Gerard (olivier.gerard(AT)gmail.com)

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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