A variation on Euclid: a(n)=g(n)-1, where g(0)=0, g(1)=1, g(n+1)=g(n)(g(n-1)+1).

A007807

A variation on Euclid: a(n)=g(n)-1, where g(0)=0, g(1)=1, g(n+1)=g(n)(g(n-1)+1).

Terms

    a(0) =0a(1) =0a(2) =1a(3) =3a(4) =11a(5) =59a(6) =779a(7) =47579a(8) =37159979

External references