a(n) = a(n-1)*a(n-2) - a(n-3), with a(1) = 0, a(2) = 1, a(3) = 2.
A022405
a(n) = a(n-1)*a(n-2) - a(n-3), with a(1) = 0, a(2) = 1, a(3) = 2.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =2a(4) =3a(5) =4a(6) =10a(7) =37a(8) =366a(9) =13532a(10) =4952675a(11) =67019597734
External references
- oeis: A022405