Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A030052
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A030052 Smallest number whose n-th power is sum of distinct smaller n-th powers. +0
1
1, 3, 5, 6, 15, 12, 25, 40, 84, 47, 63, 68, 81 (list; graph; listen)
OFFSET

0,2

LINKS

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

EXAMPLE

3^1 = 2^1 + 1^1,

5^2 = 4^2 + 3^2,

6^3 = 5^3 + 4^3 + 3^3,

15^4 = 14^4 + 9^4 + 8^4 + 6^4 + 4^4,

12^5 = 4^5 + 5^5 + 6^5 + 7^5 + 9^5 + 11^5,

25^6 = 1^6 + 2^6 + 3^6 + 5^6 + 6^6 + 7^6 + 8^6 + 9^6 + 10^6 + 12^6 + 13^6 + 15^6 + 16^6 + 17^6 + 18^6 + 23^6,

40^7 = 1^7 + 3^7 + 5^7 + 9^7 + 12^7 + 14^7 + 16^7 + 17^7 + 18^7 + 20^7 + 21^7 + 22^7 + 25^7 + 28^7 + 39^7,

84^8 = 1^8 + 2^8 + 3^8 + 5^8 + 7^8 + 9^8 + 10^8 + 11^8 + 12^8 + 13^8 + 14^8 + 15^8 + 16^8 + 17^8 + 18^8 + 19^8 + 21^8 + 23^8 + 24^8 + 25^8 + 26^8 + 27^8 + 29^8 + 32^8 + 33^8 + 35^8 + 37^8 + 38^8 + 39^8 + 41^8 + 42^8 + 43^8 + 45^8 + 46^8 + 47^8 + 48^8 + 49^8 + 51^8 + 52^8 + 53^8 + 57^8 + 58^8 + 59^8 + 61^8 + 63^8 + 69^8 + 73^8,

47^9 = 1^9 + 2^9 + 4^9 + 7^9 + 11^9 + 14^9 + 15^9 + 18^9 + 26^9 + 27^9 + 30^9 + 31^9 + 32^9 + 33^9 + 36^9 + 38^9 + 39^9 + 43^9,

63^10 = 1^10 + 2^10 + 4^10 + 5^10 + 6^10 + 8^10 + 12^10 + 15^10 + 16^10 + 17^10 + 20^10 + 21^10 + 25^10 + 26^10 + 27^10 + 28^10 + 30^10 + 36^10 + 37^10 + 38^10 + 40^10 + 51^10 + 62^10.

Comment from Jon Schoenfield, Nov 29 2008:

68^11 = 4^11 + 9^11 + 14^11 + 15^11 + 17^11 + 18^11 + 19^11 + 20^11 + 21^11 +

22^11 + 24^11 + 27^11 + 28^11 + 30^11 + 31^11 + 32^11 + 33^11 + 36^11 +

38^11 + 39^11 + 45^11 + 46^11 + 47^11 + 49^11 + 50^11 + 51^11 + 53^11 +

54^11 + 55^11 + 65^11.

CROSSREFS

Sequence in context: A048968 A092862 A112863 this_sequence A099678 A050563 A103022

Adjacent sequences: A030049 A030050 A030051 this_sequence A030053 A030054 A030055

KEYWORD

nonn,nice,new

AUTHOR

Richard Schroeppel (rschroe(AT)sandia.gov)

EXTENSIONS

n = 8 through 10 terms found by David W. Wilson (davidwwilson(AT)comcast.net)

a(11) from Al Zimmermann (alzimmerma(AT)aol.com), Apr 07 2004

a(12) from Al Zimmermann (alzimmerma(AT)aol.com), Apr 13 2004

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified December 4 12:27 EST 2008. Contains 151280 sequences.


AT&T Labs Research