Sequence: smallest number greater than previous term with exactly n divisors: Difference between revisions
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divisors n = [ (x, n `div` x) |
divisors n = [ (x, n `div` x) |
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| x <- [1..ceiling (sqrt $ realToFrac n)] |
| x <- [1..ceiling (sqrt $ realToFrac n)] |
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, n `mod` x == 0] |
, n `mod` x == 0 ] |
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go t ((n,d):xs) |
go t ((n,d):xs) |
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| d == t = (d,n) : go (succ t) xs |
| d == t = (d,n) : go (succ t) xs |
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