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A173240 The first prime that generates n primes through the iterated process of computing the value in base 3 of the base-2 representation. 0
2, 7, 181, 52722353, 1011858391 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A curiosity perhaps worth mentioning is that the decimal representations of the 1st, 3rd and 4th primes generated in this process from a(5) all share the same initial two and final two digits (leading with 10 and ending with 81).

LINKS

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

EXAMPLE

The chains in base ten for the first three terms are 2-->3, 7-->13-->37, and

181-->2521-->186733-->148988197.

CROSSREFS

Sequence in context: A336249 A120381 A260507 * A042359 A015174 A307582

Adjacent sequences:  A173237 A173238 A173239 * A173241 A173242 A173243

KEYWORD

base,nonn

AUTHOR

James G. Merickel, Feb 13 2010

EXTENSIONS

a(5) added by James G. Merickel, Jul 11 2013

STATUS

approved

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Last modified June 22 04:06 EDT 2021. Contains 345367 sequences. (Running on oeis4.)