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A015633
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Number of ordered triples of integers from [ 2,n ] with no global factor.
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1
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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; refs; listen; history; internal format)
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