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A015618 Number of triples of different integers from [ 2,n ] with no global factor. 0
0, 0, 1, 4, 9, 19, 31, 51, 73, 109, 141, 196, 247, 318, 388, 493, 576, 712, 826, 981, 1126, 1336, 1494, 1741, 1951, 2223, 2467, 2818, 3066, 3472, 3802, 4221, 4597, 5104, 5484, 6079, 6556, 7155, 7669, 8410, 8928, 9748, 10396, 11181, 11896, 12886 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,4
LINKS
CROSSREFS
Sequence in context: A100448 A059820 A180784 * A086733 A254100 A365801
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified September 12 07:57 EDT 2024. Contains 375850 sequences. (Running on oeis4.)