%I

%S 0,1,2,4,5,7,9,11,14,16,18,21,23,26,29,32,35,37,40,43,47,50,53,56,59,

%T 62,66,69,73,76,79,83,86,90,94,97,101,104,108,112,115,119,123,127,131,

%U 134,138,142

%N Floor(integral of log(x) from 1 to n).

%F a(n)=A050504(n)-n+1. - _R. J. Mathar_, Feb 12 2009

%o (Sage) [floor(N(integral(ln(x), x, 1, n))) for n in range (2,50)]

%Y Cf. A156624.

%K easy,nonn

%O 2,3

%A _Jack W Grahl_, Feb 11 2009