a(1)=a(2)=1. For n >= 3, a(n) = |(product{k=1 to n-1} a(k)) - (sum{j=1 to n-1} a(j))|.
A123703
a(1)=a(2)=1. For n >= 3, a(n) = |(product{k=1 to n-1} a(k)) - (sum{j=1 to n-1} a(j))|.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =2a(6) =2a(7) =12a(8) =264a(9) =75744a(10) =5758891776
External references
- oeis: A123703