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A180015 List of Armstrong (narcissistic) numbers in base 8 that are prime (written in base 10). 1

%I

%S 2,3,5,7,307,433,25639,212419,1122179

%N List of Armstrong (narcissistic) numbers in base 8 that are prime (written in base 10).

%e The term 25639 is equal to 62047 in base 8. 62047 has 5 digits, and 6^5 + 2^5 + 0^5 + 4^5 + 7^5 = 62047 (in base 8) = 25639 (in base 10).

%Y Cf. A010354

%K base,fini,full,nonn

%O 1,1

%A Robin James Kerrison (rjk1994(AT)gmail.com), Aug 06 2010

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Last modified January 24 13:52 EST 2020. Contains 331194 sequences. (Running on oeis4.)