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Round(n*sqrt(11)).
1

%I #8 Sep 08 2022 08:45:59

%S 0,3,7,10,13,17,20,23,27,30,33,36,40,43,46,50,53,56,60,63,66,70,73,76,

%T 80,83,86,90,93,96,99,103,106,109,113,116,119,123,126,129,133,136,139,

%U 143,146,149,153,156,159,163,166,169,172,176,179

%N Round(n*sqrt(11)).

%H Vincenzo Librandi, <a href="/A198267/b198267.txt">Table of n, a(n) for n = 0..10000</a>

%o (Magma) [Round(n*Sqrt(11)): n in [0..60]]

%Y Cf. A067497, A171982.

%K nonn,easy

%O 0,2

%A _Vincenzo Librandi_, Oct 24 2011