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A105662 a(n) = abs(floor(n*sin(n))). 4

%I #13 Jan 08 2020 14:24:38

%S 0,0,1,0,4,5,2,4,7,3,6,11,7,5,13,9,5,17,14,2,18,17,1,20,22,4,19,25,7,

%T 20,30,13,17,32,17,15,36,24,11,37,29,7,39,36,0,38,41,5,37,47,14,34,51,

%U 20,31,55,30,24,57,37,19,59,46,10,58,53,2,58,62,8,54,67,18,50,73,30,43,76

%N a(n) = abs(floor(n*sin(n))).

%H Rémy Sigrist, <a href="/A105662/b105662.txt">Table of n, a(n) for n = 0..10000</a>

%t Table[Abs[Floor[n Sin[n]]],{n,0,80}] (* _Harvey P. Dale_, Jan 08 2020 *)

%o (PARI) a(n) = abs(floor(n*sin(n))); \\ _Michel Marcus_, Oct 09 2013

%Y Cf. A105663, A105664.

%K nonn,look

%O 0,5

%A _Zak Seidov_, May 04 2005

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