OFFSET
1,2
COMMENTS
From M. F. Hasler, Nov 20 2019: (Start)
Like the other single-digit terms, zero would satisfy the definition (n = Sum_{i=1..k} d[i]^k when d[1..k] are the digits of n), but here only positive numbers are considered.
Terms a(n+1) = a(n) + 1 (n = 8, 11, 20, 28) correspond to solutions a(n) ending in a digit 0 in base 6, in which case a(n) + 1 also is a solution. (End)
LINKS
Joseph Myers, Table of n, a(n) for n = 1..30 (the full list of terms, from Winter)
Eric Weisstein's World of Mathematics, Narcissistic Number
D. T. Winter, Table of Armstrong Numbers (latest backup on web.archive.org from Jan. 2010; page no longer available), published not later than Aug. 2003.
PROG
(PARI) select( {is_A010348(n)=n==vecsum([d^#n|d<-n=digits(n, 6)])}, [0..4e5\1]) \\ Note: this yields only terms < 10^6, for illustration of is_A010348(). - M. F. Hasler, Nov 20 2019
CROSSREFS
KEYWORD
base,fini,full,nonn
AUTHOR
EXTENSIONS
Edited by Joseph Myers, Jun 28 2009
STATUS
approved