**Smallest number m such that the concatenation of n+1 numbers m^0, m^1,..., m^(n-1), m^n is a prime.**

*1, 3, 33, 23, 237, 93, 37, 291, 421, 7, 471, 213, 1941, 29, 43, 17, 327, 1, 523, 21*

*1 seqfan posts*

Index of A-numbers in seqfan: by ascending order by month by frequency by keyword

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