Re^4: Numerically generate the perl sequence 1, 11, 111, ....

One interesting and useful sequence that springs to mind is:

 2, 3, 5, 7, 11, 13, ...  # Prime numbers.
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but with neither differences, nor ratios could one continue the sequence.

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Re^5: Numerically generate the perl sequence 1, 11, 111, .... by moritz (Cardinal) on Oct 12, 2008 at 16:07 UTC
... nor can it be efficiently computed, which is why I'd leave it out.	[reply]