1788696

Appears in sequences

• Numbers whose square can be expressed as the sum of two positive cubes in more than one way.at n=4A051302
• Numbers whose square is expressible as the difference of positive cubes in more than one way.at n=13A051393
• Prime power perfect numbers: If n = Product p_i^r_i let PPsigma(n) = Product {Sum p_i^s_i, 2<=s_i<=r_i, s_i is prime}; sequence gives numbers k such that PPsigma(k) = 2*k.at n=29A096290
• Numbers n such that n^2 can be expressed as the sum of 2 positive cubes in exactly 2 different ways.at n=4A145553
• Numbers whose square can be written as the average of two positive cubes in more than one way.at n=5A322101