Group odd numbers into (1), (3,5,7), (9,11,13,15,17), ...; a(n) = product of n-th group.
A062031
Group odd numbers into (1), (3,5,7), (9,11,13,15,17), ...; a(n) = product of n-th group.
Terms
- a(0) =1a(1) =105a(2) =328185a(3) =5568833025
External references
- oeis: A062031