684019

Appears in sequences

• Taxi-cab numbers: sums of 2 cubes in more than 1 way.at n=33A001235
• Numbers that are the sum of 2 cubes in more than 1 way (primitive solutions).at n=17A018850
• Numbers that are both a sum of two positive cubes and a difference of two consecutive cubes.at n=17A225909
• Cubefree taxi-cab numbers.at n=7A272885
• Sum of two coprime positive cubes in at least 2 ways, but not the sum of 2 non-coprime positive cubes.at n=7A293649
• Sum of two (possibly negative) cubes in at least 3 ways (primitive solutions).at n=24A293650
• Sum of two (possibly negative) coprime cubes in at least 3 ways, but not the sum of 2 noncoprime cubes.at n=5A293651
• a(n) = (1/720)*n*(n - 10)*(n - 1)*(n^3 - 34*n^2 + 181*n - 144).at n=38A319932
• Numbers that are the sum of two positive cubes in exactly two ways.at n=33A343708
• Taxicab numbers (sums of 2 cubes in more than 1 way) which are products of four distinct primes.at n=0A354447
• Taxicab numbers that are sandwiched between nonsquarefree numbers.at n=4A372296
• Taxicab numbers that are deficient.at n=16A379849