147916

Appears in sequences

• Numerator of Sum_{k=1..n} phi(k)/k.at n=15A071708
• Numerator of Sum_{i=0..n} (-1)^i*4/(2*i + 1).at n=6A215746
• a(n) is the numerator of the density of natural numbers m such that gcd(m,floor(m/n))=1.at n=16A250031