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例子
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选定n的a(n)严格分区:
n=3 18 22 28 31 32
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(2,1) (8,5,3,2) (8,6,5,3) (12,7,5,4) (10,7,5,4,3,2) (12,8,7,5)
(8,6,3,1) (8,7,5,2) (12,8,5,3) (10,7,6,5,2,1) (12,9,7,4)
(12,7,2,1) (12,9,5,2) (10,8,5,4,3,1) (16,9,4,3)
(16,9,2,1) (10,9,6,3,2,1) (12,10,7,3)
(12,10,5,1) (12,11,7,2)
(16,11,4,1)
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