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A253577 Primes p such that digits of p do not appear in p^8. 2
3, 43, 59, 73, 233, 353 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
a(7) > 10^7.
Subsequence of A253606. a(7) > 10^9. - Chai Wah Wu, Jan 05 2015
LINKS
EXAMPLE
3 and 3^8 = 6561 have no digits in common, hence 3 is in the sequence.
MATHEMATICA
Select[Prime[Range[1000000]], Intersection[IntegerDigits[#], IntegerDigits[#^8]]=={} &]
PROG
(Python)
from sympy import isprime
A253577_list = [n for n in range(1, 10**6) if set(str(n)) & set(str(n**8)) == set() and isprime(n)]
# Chai Wah Wu, Jan 05 2015
CROSSREFS
Cf. similar sequences listed in A253574.
Sequence in context: A157572 A332973 A137192 * A337213 A059802 A139854
KEYWORD
nonn,base,more
AUTHOR
Vincenzo Librandi, Jan 04 2015
STATUS
approved

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)