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A061109 a(1) = 1; a(n) = smallest number such that the concatenation a(1)a(2)...a(n) is an n-th power. 8
1, 6, 6375, 34623551127976881, 18860302374385155610185422853070042488899966126368559233360607121925651097253827765970857 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Is this sequence infinite? - Charles R Greathouse IV, Sep 19 2012

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

Table of n, a(n) for n=0..4.

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: A003191 A298272 A000438 * A321983 A219014 A013784

Adjacent sequences:  A061106 A061107 A061108 * A061110 A061111 A061112

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Apr 20 2001

EXTENSIONS

Corrected and extended by Ulrich Schimke, Feb 08, 2002

STATUS

approved

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Last modified July 9 16:50 EDT 2020. Contains 335545 sequences. (Running on oeis4.)