705024

Appears in sequences

• Expansion of (1-x)/(1+2*x+2*x^2-2*x^3).at n=21A078067
• Numbers n such that n = k/d(k) has exactly 6 solutions, where d(k) = number of divisors of k.at n=2A217127
• a(n) = -3*n^2*(n-1)^4*(n+1)*(11*n^3+49*n^2-439*n+171).at n=3A259395