a(n) = number of solutions (x_1, x_2, ..., x_n) to Product_{i=1..n} (1 + 1/x_i) = 2.
A085098
a(n) = number of solutions (x_1, x_2, ..., x_n) to Product_{i=1..n} (1 + 1/x_i) = 2.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =43a(4) =876a(5) =49513a(6) =13005235
External references
- oeis: A085098