a(1) = 1, a(2) = 2 and a(n) = product of the nonzero digits of all previous terms.
A091788
a(1) = 1, a(2) = 2 and a(n) = product of the nonzero digits of all previous terms.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =4a(4) =16a(5) =96a(6) =5184a(7) =829440a(8) =1911029760
External references
- oeis: A091788