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Search: id:A077521
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| A077521 |
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a(1) = 1, a(n) = smallest square-free number which begins with n and is a multiple of the previous term. |
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+0 1
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| 1, 2, 30, 4110, 53430, 6037590, 718473210, 802534575570, 901246328365110, 1001284670813637210, 1104416991907441842630, 120381452117911160846670, 130132349739461964875250270, 141453864166795155819397043490
(list; graph; listen)
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