1 . 数字中暗藏着一些潜在的规律,古希腊毕达哥拉斯学派通过石子的排列发现了三角形数、正方形数等;有时将数字进行拆分后也能够发现新的规律,现将一组数据拆分如下:
,
,
,
,
,
,
,
,
,
,
……
观察可知,这组数据中的第8个数为
,则
是该组数据的第__________ 个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5296c0056db0e2b5331c9b9a6d45962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed3b68a28b6edbaa111066b3f7867aae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8f5eb811d30b64f83d77668f5aeb644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f438a2955e3e87522bd3719a42f33d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/425e1b4b3e897ab0997388b73c2cf1fd.png)
……
观察可知,这组数据中的第8个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80574bab7c10d2fe3e307359c6a0d140.png)
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2023-02-03更新
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2卷引用:1号卷·A10联盟2023届高三开年考数学试题