a(n) = a(n-1) + a(n-2)*a(n-3) for n > 2 with a(0) = a(1) = a(2) = 1.
A006888
a(n) = a(n-1) + a(n-2)*a(n-3) for n > 2 with a(0) = a(1) = a(2) = 1.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =5a(6) =11a(7) =26a(8) =81a(9) =367a(10) =2473a(11) =32200a(12) =939791a(13) =80570391a(14) =30341840591
External references
- oeis: A006888