|
| |
|
|
A205770
|
|
Powers of fifth root of 100, rounded to the nearest integer.
|
|
0
|
|
|
|
1, 3, 6, 16, 40, 100, 251, 631, 1585, 3981, 10000, 25119, 63096, 158489, 398107, 1000000, 2511886, 6309573, 15848932, 39810717, 100000000, 251188643, 630957344, 1584893192, 3981071706, 10000000000, 25118864315, 63095734448, 158489319246, 398107170553, 1000000000000
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
0,2
|
|
|
COMMENTS
|
The fifth root of 100, known as Pogson's ratio, is the ratio between successive stellar magnitudes.
|
|
|
LINKS
|
Table of n, a(n) for n=0..30.
Eric Weisstein's World of Mathematics, Pogson's Ratio
|
|
|
PROG
|
(PARI) a(n)=round(100^(n/5)) \\ Charles R Greathouse IV, Jan 31 2012
|
|
|
CROSSREFS
|
Bisection of A018142, ratio is A189824.
Sequence in context: A168317 A188442 A046211 * A018022 A166536 A128720
Adjacent sequences: A205767 A205768 A205769 * A205771 A205772 A205773
|
|
|
KEYWORD
|
nonn,easy,changed
|
|
|
AUTHOR
|
Franklin T. Adams-Watters, Jan 31 2012
|
|
|
STATUS
|
approved
|
| |
|
|