87539319

Appears in sequences

• Numbers that are the sum of two positive cubes in at least three ways (primitive solutions).at n=0A003825
• Taxicab, taxi-cab or Hardy-Ramanujan numbers: the smallest number that is the sum of 2 positive integral cubes in n ways.at n=2A011541
• Numbers that are the sum of two positive cubes in at least three ways (all solutions).at n=0A018787
• Sum of two (possibly negative) cubes in at least 4 ways.at n=18A051384
• Smallest number that is the sum of two positive n-th powers in >= n ways.at n=2A230561
• Numbers that are the sum of two cubes in exactly three ways.at n=0A344804
• a(n) is the smallest number which can be represented as the sum of two distinct positive n-th powers in exactly n ways, or -1 if no such number exists.at n=2A374226
• a(n) is the smallest number which can be represented as the sum of 2 distinct positive n-th powers in exactly 3 ways, or -1 if no such number exists.at n=2A374418