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%I #17 Apr 11 2021 16:12:01
%S 0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,5,6,6,6,7,7,7,8,8,8,9,9,9,10,10,10,
%T 11,11,11,12,12,12,13,13,13,13,14,14,14,15,15,15,16,16,16,17,17,17,18,
%U 18,18,19,19,19,20,20,20,20,21,21,21,22,22,22,23,23,23,24,24,24,25,25
%N a(n) = floor(cot(Pi/(n+1))).
%H Harry J. Smith, <a href="/A062299/b062299.txt">Table of n, a(n) for n = 1..1000</a>
%e a(999) = 318 as cot(Pi/1000) = 318.308838985550445921686695436921...
%o (PARI) v=[]; for(n=1,200,v=concat(v,floor(cotan(Pi/(n+1))))); v
%o (PARI) { default(realprecision, 50); for (n=1, 1000, write("b062299.txt", n, " ", floor(cotan(Pi/(n+1)))) ) } \\ _Harry J. Smith_, Aug 04 2009
%K nonn
%O 1,6
%A _Amarnath Murthy_, Jun 19 2001
%E More terms from _Jason Earls_, Jun 21 2001
%E Corrected by _T. D. Noe_, Nov 01 2006
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