Riesel number
- 黎瑟尔数（黎瑟尔数是奇正整数"k"使得所有形式如"k" × 2n - 1的数均为合成数，也是反谢尔宾斯基数）
Riesel number
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abstract:
In mathematics, a Riesel number is an odd natural number k for which the integers of the form k·2n − 1 are composite for all natural numbers n.
以上来源于:
WordNet