40033

Appears in sequences

• Taxi-cab numbers: sums of 2 cubes in more than 1 way.at n=6A001235
• Numbers that are the sum of 2 cubes in more than 1 way (primitive solutions).at n=4A018850
• Numbers whose 4th power can be expressed as the sum of two positive cubes in more than one way.at n=16A051388
• Numbers k such that 3*10^k + 1*R_k is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=21A056704
• Composites in base 10 that remain composite in exactly four bases b, 2 <= b <= 10, expansions interpreted as decimal numbers.at n=18A256354
• Cubefree taxi-cab numbers.at n=2A272885
• Cubefree taxi-cab numbers that are not squarefree.at n=0A272889
• Sum of two (possibly negative) coprime cubes in at least 2 ways, but not the sum of 2 noncoprime cubes.at n=26A293648
• Sum of two coprime positive cubes in at least 2 ways, but not the sum of 2 non-coprime positive cubes.at n=2A293649
• Number of unordered pairs of rooted trees with a total of n nodes and an even total of leaves.at n=14A339524
• Numbers that are the sum of two positive cubes in exactly two ways.at n=6A343708
• Taxicab numbers that are deficient.at n=2A379849