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Search: id:A072181
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| A072181 |
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a(1) = 1; for n >= 2, suppose a(n-1) = Product p_i^e_i and n = Product p_i^f_i, then a(n) = Product p_i^(e_i*f_i). |
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| 1, 2, 6, 12, 60, 60, 420, 6720, 20160, 20160, 221760, 14192640, 184504320, 184504320, 184504320, 12679040325931499520, 215543685540835491840, 1939893169867519426560, 36857970227482869104640
(list; graph; listen)
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