a(n+1) = a(n)-a(1)a(2)...a(n-1), if n>0. a(0)=1, a(1)=2.
A003687
a(n+1) = a(n)-a(1)a(2)...a(n-1), if n>0. a(0)=1, a(1)=2.
Terms
- a(0) =1a(1) =2a(2) =1a(3) =-1a(4) =-3a(5) =-1a(6) =-7a(7) =-1a(8) =-43a(9) =-1a(10) =-1807a(11) =-1a(12) =-3263443a(13) =-1a(15) =-1a(17) =-1a(19) =-1
External references
- oeis: A003687