13287625

Appears in sequences

• a(n) is the least positive integer that can be expressed as the sum of two distinct perfect powers (A001597) in exactly n ways.at n=25A365295
• a(n) is the numerator of f(n)*conj(f(n)), where f(n) = Product_{k=1..n} (1/k + i), i is the imaginary unit, and conj(z) is the complex conjugate of z.at n=7A370555
• Smallest number which can be represented as a sum of two distinct nontrivial powers in exactly n ways.at n=24A390008