a(1)=0, a(2)=1, a(n) = (4*n-2)*a(n-1) + a(n-2), n > 2.
A343689
a(1)=0, a(2)=1, a(n) = (4*n-2)*a(n-1) + a(n-2), n > 2.
Terms
- a(0) =0a(1) =1a(2) =10a(3) =141a(4) =2548a(5) =56197a(6) =1463670a(7) =43966297a(8) =1496317768a(9) =56904041481
External references
- oeis: A343689