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A120339
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a(n) = 3abc, where (a,b,c) is a Markoff triple. The first Markoff triple considered is (1,2,5) and the ordering is increasing.
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30, 195, 870, 1326, 9078, 29406, 37830, 62211, 188355, 426390, 998790, 1756950, 2922510, 8430270, 20031171, 33929310, 41996670, 57206526, 82401006, 137295678, 216148803, 941038566, 1152597606, 1418915886, 1879906755, 2668548675, 3870146310, 6449974275, 9365063430, 18263765550, 39154389150, 44208781350
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