1,1

Table of n, a(n) for n=1..49.

a(n) = n*A002808(n)/A064814(n). - Lior Manor Jun 02 2002

a(10)=90 as 18 is the 10th composite number and 10*18/gcd(10,18)=10*18/2=90.

Sequence in context: A326233 A087784 A174197 * A305381 A164532 A098660

Adjacent sequences: A071221 A071222 A071223 * A071225 A071226 A071227

nonn

Amarnath Murthy, May 17 2002

More terms from Reinhard Zumkeller, May 28 2002

More terms from Lior Manor Jun 02 2002

approved