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Floor(5n + log(5n)).
6

%I #20 Sep 08 2022 08:46:02

%S 6,12,17,22,28,33,38,43,48,53,59,64,69,74,79,84,89,94,99,104,109,114,

%T 119,124,129,134,139,144,149,155,160,165,170,175,180,185,190,195,200,

%U 205,210,215,220,225,230,235,240,245,250,255,260,265,270,275,280,285

%N Floor(5n + log(5n)).

%H Vincenzo Librandi, <a href="/A212449/b212449.txt">Table of n, a(n) for n = 1..1000</a>

%t Table[Floor[5*n + Log[5*n]], {n, 100}] (* _T. D. Noe_, May 21 2012 *)

%o (Magma) [Floor(5*n + Log(5*n)): n in [1..80]]; // _Vincenzo Librandi_, Feb 14 2013

%o (PARI) a(n)=5*n+log(5*n)\1 \\ _Charles R Greathouse IV_, Sep 04 2015

%Y Cf. A000523, A062153, A102572, A212445, A212446, A212447, A212448, A212450, A212451, A212452, A212453, A212454.

%K nonn,easy

%O 1,1

%A _Mohammad K. Azarian_, May 17 2012