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数学式测试:
Chapter 9 Generating Function
9.2 Definition and Examples: Calculational Techniques
(a)
So generates
1, 1, 1, ..., 1, 0, 0, 0, ...
(b)
Extending (a), So generates
1, 1, 1, ...
数学式测试:
So generates
1, 1, 1, ..., 1, 0, 0, 0, ...
Extending (a), So generates
1, 1, 1, ...