[Bug]
>> printRecursiveSeries((x+1)x(x+2),x,1,10,\n)
in> printRecursiveSeries((x+1)x(x+2),x,1,10,\n)
1
3
5
7
9
11
13
15
17
19
不同于下面的 (x+1)*x*(x+2)
------------------------
>> printRecursiveSeries((x+1)*x*(x+2),x,1,10,\n)
in> printRecursiveSeries((x+1)*x*(x+2),x,1,10,\n)
1
6
336
38272416
56060590716839257663296
176186654453940966415101758343368831005891099500239113100063334235776
5469139827058218798101218465260906817770532009979290887174189373402102848480157704494601835787106557175334209323000899768994221877279015724289748216104673490320217281562508981513548171796332733064696806656
>> printRecursiveSeries(x(x+1)(x+2),x,1,10,\n)
in> printRecursiveSeries(x(x+1)*(x+2),x,1,10,\n)
1
6
56
3306
10939556
119673918295806
14321846720271609085072077056