A072171 - OEIS
Number of stars of visual magnitude n.
1
%I #7 Aug 31 2013 19:29:44
%S 2,6,14,71,190,610,1929,5946,17765,51094,140062,409194,1196690,
%T 3481113,10126390,29457184,85689537,249266759,725105060,2109295881,
%U 6135840666,17848866544
%N Number of stars of visual magnitude n.
%C These numbers are not well-defined and the sequence is included only for completeness.
%C For magnitude -1, the number includes any star whose magnitude is between -1.50 and -0.51, of which there are only two, Sirius and Canopus.
%H David Haworth, <a href="http://www.stargazing.net/david/constel/howmanystars.html">How Many Stars You Can Observe</a>
%Y Cf. A053406.
%K nonn,dumb
%O -1,1
%A _Robert G. Wilson v_, Jun 28 2002
%E Corrected a(5) to agree with the table at the Haworth link and edited the Comments.