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A173759
Prime numbers p such that 1/p is in the Cantor set.
0
3, 13, 757, 1093, 797161
OFFSET
1,1
COMMENTS
These are the prime numbers in A121153. Some of these primes are in A076481, the base-3 repunit primes, which have the form (3^n-1)/2. However, 757 has base-3 representation 1001001 and a base-27 representation 111. Are more exceptions?
Contains A076481 as a subsequence, implying that a(6) <= A076481(4) = 3754733257489862401973357979128773. - Max Alekseyev, Aug 17 2013
LINKS
Christian Salas, On Prime Reciprocals in the Cantor Set, arXiv:0906.0465 [math.NT]
EXAMPLE
3 is here because 1/3 can be written 0.02222222...
CROSSREFS
Sequence in context: A290376 A089711 A374173 * A001039 A357855 A368297
KEYWORD
more,nonn
AUTHOR
T. D. Noe, Feb 23 2010
STATUS
approved