cc905803834 发表于 2021-7-31 23:38

哪位大神能够推导出这个数学公式？

x=0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49

y=2,2,2,2,2,2,2,2,2,2,3,3,3,3,4,4,4,4,4,5,5,5,5,5,6,6,6,6,7,7,6,7,7,7,7,7,8,8,8,8,8,9,9,9,9,9,10,10,10,10
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