Smallest octagonal number with n distinct prime factors.
A156239
Smallest octagonal number with n distinct prime factors.
Terms
- a(0) =8a(1) =21a(2) =280a(3) =1680a(4) =38760a(5) =326040a(6) =10986360a(7) =185040240a(8) =4897368840a(9) =383246454360
External references
- oeis: A156239