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A180015 List of Armstrong (narcissistic) numbers in base 8 that are prime (written in base 10). 1
2, 3, 5, 7, 307, 433, 25639, 212419, 1122179 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

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).

CROSSREFS

Cf. A010354

Sequence in context: A067170 A090719 A088297 * A052024 A052023 A052025

Adjacent sequences:  A180012 A180013 A180014 * A180016 A180017 A180018

KEYWORD

base,fini,full,nonn

AUTHOR

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

STATUS

approved

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Last modified December 6 04:14 EST 2019. Contains 329784 sequences. (Running on oeis4.)