a(n) is the denominator of b(n) where b(n)=1/b(n-1)+1/b(n-2) with b(1)=1 and b(2)=2.

A066932

a(n) is the denominator of b(n) where b(n)=1/b(n-1)+1/b(n-2) with b(1)=1 and b(2)=2.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =21a(5) =224a(6) =10848a(7) =4843293a(8) =98262557120

External references