a(n) = number of integer solutions to 1 <= x1 <= x2 <= ... <= xn to 1/x1 + ... + 1/xn = (1 - 1/x1) * ... * (1 - 1/xn).
A369470
a(n) = number of integer solutions to 1 <= x1 <= x2 <= ... <= xn to 1/x1 + ... + 1/xn = (1 - 1/x1) * ... * (1 - 1/xn).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =35a(4) =455a(5) =13624a(6) =1176579
External references
- oeis: A369470