a(1) = 1; a(n+1) = 1 + Product_{k|n} a(k), product is over the positive divisors, k, of n.
A068334
a(1) = 1; a(n+1) = 1 + Product_{k|n} a(k), product is over the positive divisors, k, of n.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =4a(4) =9a(5) =10a(6) =61a(7) =62a(8) =497a(9) =1492a(10) =26857a(11) =26858a(12) =6445921a(13) =6445922a(14) =786402485a(15) =21232867096
External references
- oeis: A068334