T0=1
Tn=(n+2) T(n−1)+3n!
| a1*a2*...*an−1*S1 | ||
Sn= | ||
| b2*b3*...*bn |
| 1 | ||
Tn= | (To*b1*S1+∑(k=1 do n) Sk*ck) | |
| Sn*an |
| 3S1 | ||
Sn= | ||
| (n+2)! |
| (n+2)! | 9 | 3n | ||||
Tn= | (3S1 + ∑(k=1 do n) | *S1)=(n+2)! (1+ | ) | |||
| 3S1 | (k+1)(k+2) | 2n+4 |
| S1 | 6S1 | |||
Sn= | = | |||
| 4*5*...*(n+2) | (n+2)! |
| (n+2)! | 18S1 | 1 | 3n | |||||
Tn= | (3S1+∑(k=1 do n)( | ))=(n+2)!( | + | )= | ||||
| 6S1 | (k+1)(k+2) | 2 | 2(n+2) |