|
| |
|
|
A140809
|
|
10^n-th squarefree number.
|
|
0
| |
|
|
2, 15, 165, 1639, 16447, 164499, 1644919, 16449370, 164493391, 1644934082, 16449340710, 164493406181, 1644934067513, 16449340668749, 164493406685661, 1644934066850411, 16449340668485217, 164493406684817903, 1644934066848209911
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,1
|
|
|
COMMENTS
| a(n)=A005117(10^n) with offset 0.
|
|
|
REFERENCES
| J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 165, pp 53, Ellipses, Paris 2008.
|
|
|
CROSSREFS
| Cf. A005117.
Sequence in context: A124548 A139085 A204679 * A153852 A177396 A117667
Adjacent sequences: A140806 A140807 A140808 * A140810 A140811 A140812
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Lekraj Beedassy (blekraj(AT)yahoo.com), Jul 15 2008
|
|
|
EXTENSIONS
| a(10)-a(12) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Nov 06 2010
a(13)-a(18) from Robert Gerbicz (robert.gerbicz(AT)gmail.com), Nov 22 2010
|
| |
|
|
