2870239

Appears in sequences

• a(n) = numerator of Sum_{k=1..n} k^mu(n+1-k), where mu(m) = A008683(m).at n=18A130491
• Expansion of 1/(1 - Sum_{k>=2} floor(1/omega(k))*x^k), where omega(k) is the number of distinct prime factors (A001221).at n=35A280195