155665

Appears in sequences

• a(n) = A027052(n, 2n-8).at n=11A027064
• Expansion of Sum_{i>=1} mu(i)^2*x^i/(1 - x^i) * Product_{j>=i} 1/(1 - mu(j)^2*x^j), where mu() is the Moebius function (A008683).at n=46A284829