Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A138130
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A138130 Powers of 1729, the Hardy-Ramanujan number. +0
2
1, 1729, 2989441, 5168743489, 8936757492481, 15451653704499649, 26715909255079893121, 46191807102033135206209, 79865634479415290771535361, 138087682014909037743984639169 (list; graph; listen)
OFFSET

0,2

COMMENT

About 1729: "No," said Ramanujan, "It is a very interesting number..."

REFERENCES

David Wells, THE PENGUIN DICTIONARY OF Curious and Interesting NUMBERS. Penguin Books, NY, 1997, 153.

FORMULA

a(n)=1729^n

CROSSREFS

Cf. A001235, A011541, A133019, A133029, A138129.

Adjacent sequences: A138127 A138128 A138129 this_sequence A138131 A138132 A138133

Sequence in context: A154728 A033502 A050794 this_sequence A048949 A130876 A008745

KEYWORD

nonn

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Mar 09 2008

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 November 8 20:39 EST 2009. Contains 166234 sequences.


AT&T Labs Research