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The fifth root of 100, known as Pogson's ratio, is the ratio between successive stellar magnitudes.
Table of n, a(n) for n=0..30.
Eric Weisstein's World of Mathematics, Pogson's Ratio
(PARI) a(n)=round(100^(n/5)) \\ Charles R Greathouse IV, Jan 31 2012
Bisection of A018142, ratio is A189824.
Sequence in context: A188442 A046211 A239980 * A018022 A166536 A128720
Adjacent sequences: A205767 A205768 A205769 * A205771 A205772 A205773
Franklin T. Adams-Watters, Jan 31 2012