4 ms·

It feels odd the sum of the first example is 26. (All the number nerds, please forgive me). It's such a usual number.

• gaogao 2y ago
  From my read, it probably flows from 26 = 27 - 1 = 3^3 - 1, given the equation is looking at cubes.
  • deleted 2y ago
    [deleted]
  • lupire 2y ago
    It's not. (Law of Small Numbers) As the exponent k in the denominator grows, the sum is approximately k! (factorial) https://oeis.org/A000629 https://oeis.org/A000629