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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A061109 a(1) = 1; a(n) = smallest number such that the concatenation a(1)a(2)...a(n) is an n-th power. 2
1, 6, 6375, 34623551127976881, 18860302374385155610185422853070042488899966126368559233360607121925651097253827765970857 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

REFERENCES

Amarnath Murthy, Exploring some new ideas on Smarandache type sets, functions and sequences, Smarandache Notions Journal Vol. 11, No. 1-2-3, Spring 2000.

LINKS

M. L. Perez et al., eds., Smarandache Notions Journal

EXAMPLE

a(1) = 1, a(1)a(2) = 16 = 4^2, a(1)a(2)a(3) = 166375 = 55^3, 16637534623551127976881 = 359147^4.

a(1) = 1, a(1)a(2) = 16 = 4^2, a(1)a(2)a(3) = 166375 = 55^3, 166375642922965550370816 = 638664^4.

CROSSREFS

Sequence in context: A202969 A003191 A000438 * A013784 A188979 A158880

Adjacent sequences:  A061106 A061107 A061108 * A061110 A061111 A061112

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 20 2001

EXTENSIONS

Corrected and extended by Ulrich Schimke, Feb 08, 2002

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

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

Last modified February 17 03:45 EST 2012. Contains 205978 sequences.