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a(n)=k such that kLog(k)<n<(k+1)Log(k+1).
0

%I #6 Mar 30 2012 18:38:59

%S 2,3,3,4,4,5,5,5,6,6,7,7,7,8,8,8,9,9,9,10,10,10,10,11,11,11,12,12,12,

%T 13,13,13,13,14,14,14,15,15,15,15,16,16,16,16,17,17,17,17,18,18,18,18,

%U 19,19,19,20,20,20,20,21,21,21,21,22,22,22,22,22,23,23,23,23,24,24,24

%N a(n)=k such that kLog(k)<n<(k+1)Log(k+1).

%o (PARI) for(n=1,100,s=1; while(s*log(s)<n,s++); print1(s,","))

%K easy,nonn

%O 1,1

%A _Benoit Cloitre_, May 18 2002