login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A014576 Smallest n-digit narcissistic (or Armstrong) number: smallest n-digit number equal to sum of n-th powers of its digits (or 0 if no such number exists). 12
1, 0, 153, 1634, 54748, 548834, 1741725, 24678050, 146511208, 4679307774, 32164049650, 0, 0, 28116440335967, 0, 4338281769391370, 21897142587612075, 0, 1517841543307505039, 63105425988599693916, 128468643043731391252, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

REFERENCES

M. Gardner, The Magic Numbers of Dr Matrix. Prometheus, Buffalo, NY, 1985, p. 249.

C. A. Pickover, Keys to Infinity. New York: W. H. Freeman, pp. 169-170, 1995.

LINKS

T. D. Noe, Table of n, a(n) for n=1..39 (complete sequence)

Harvey Heinz, Narcissistic Numbers

Mike Keith, Wild Narcissistic Numbers (Copy as of May 2008 on web.archive.org - page does not exist any more.)

Eric Weisstein's World of Mathematics, Narcissistic Number.

MATHEMATICA

(* This program is not suitable for more than 10 terms *) a[n_] := For[k = 10^(n-1), True, k++, If[k > 10^n - 1, Return[0], If[k == Total[ IntegerDigits[k]^IntegerLength[k] ], Return[k] ] ] ]; Table[ Print[an = a[n]]; an, {n, 1, 10}] (* Jean-Fran├žois Alcover, Oct 15 2013 *)

CROSSREFS

Cf. A001694, A007532, A005934, A005188, A003321, A023052, A046074.

Sequence in context: A193249 A050209 A109142 * A087414 A184369 A073938

Adjacent sequences:  A014573 A014574 A014575 * A014577 A014578 A014579

KEYWORD

nonn,base,fini,full,nice

AUTHOR

N. J. A. Sloane.

EXTENSIONS

Terms and links added by Patrick De Geest, Oct 1998.

Broken links fixed by M. F. Hasler, Feb 12 2013

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified November 24 10:09 EST 2014. Contains 249882 sequences.