%I
%S 0,6,13,19,25,31,38,44,50,57,63,69,75,82,88,94,101,107,113,119,126,
%T 132,138,145,151,157,163,170,176,182,188,195,201,207,214,220,226,232,
%U 239,245,251
%N a(n) = 2 Pi * n rounded off.
%C If only integers are allowed in computations, a(n) gives the sequence of circumferences of circles in order of increasing radii.
%t Round[Table[2 Pi * n, {n, 0, 40}]]
%K easy,nonn
%O 1,2
%A _Joseph L. Pe_, Oct 03 2002
