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A100893 a(n) = smallest n-digit prime formed by appending a digit to a(n-1); a(1) = 2. 1
2, 23, 233, 2333, 23333 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

This sequence is finite because there is no prime a(6) since 233331,233333,233337,233339 are not prime.

This is an initial subsequence of A048549, A065122, A088603, and A127889; and for any b, the base b analog of this sequence is an initial subsequence of the base b analog of each of these three sequences. [From Franklin T. Adams-Watters, Jun 27 2009]

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

a(1)=2

a(2)=23

a(3)=233

a(4)=2333

a(5)=23333

CROSSREFS

Sequence in context: A026075 A037757 A037645 * A198972 A065122 A127889

Adjacent sequences:  A100890 A100891 A100892 * A100894 A100895 A100896

KEYWORD

fini,nonn,base,full

AUTHOR

Jorge Coveiro, Jan 10 2005

STATUS

approved

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Last modified June 30 03:34 EDT 2022. Contains 354913 sequences. (Running on oeis4.)