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A049997
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a(n) = n-th number of the form F(i)*F(j), when these Fibonacci-products are arranged in order without duplicates.
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5
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0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 13, 15, 16, 21, 24, 25, 26, 34, 39, 40, 42, 55, 63, 64, 65, 68, 89, 102, 104, 105, 110, 144, 165, 168, 169, 170, 178, 233, 267, 272, 273, 275, 288, 377, 432, 440, 441, 442, 445, 466, 610, 699, 712, 714, 715, 720, 754
(list; graph; refs; listen; history; internal format)
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