perplexus.info :: Sequences : Next one(s), please

Next one(s), please (Posted on 2015-01-08)

S=(2, 19, 23, 317, 1031...)

What can be said about the next number(s) in the above sequence?

No Solution Yet Submitted by Ady TZIDON

Rating: 4.0000 (1 votes)

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The next number is 49081. These are the indices of prime repunits in base 10.

Posted by Math Man on 2015-01-08 08:10:50

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