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A352826型 |
| 没有不动点y(i)=i的整数分区y的Heinz数。如果存在这样一个不动点,那么它是唯一的。 |
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21
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1, 3, 5, 6, 7, 10, 11, 12, 13, 14, 17, 19, 20, 22, 23, 24, 25, 26, 28, 29, 31, 34, 35, 37, 38, 40, 41, 43, 44, 46, 47, 48, 49, 50, 52, 53, 55, 56, 58, 59, 61, 62, 65, 67, 68, 70, 71, 73, 74, 75, 76, 77, 79, 80, 82, 83, 85, 86, 88, 89, 91, 92, 94, 95, 96, 97
(列表;图表;参考;听;历史;文本;内部格式)
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抵消
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1,2
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评论
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分区的Heinz数(y_1,…,y_k)是质数(y_1)**质数(yk)。这给出了正整数和整数分区之间的双向对应。
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链接
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例子
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这些术语及其素数开始于:
1: () 24: (2,1,1,1) 47: (15)
3: (2) 25: (3,3) 48: (2,1,1,1,1)
5: (3) 26: (6,1) 49: (4,4)
6: (2,1) 28: (4,1,1) 50: (3,3,1)
7: (4) 29: (10) 52: (6,1,1)
10: (3,1) 31: (11) 53: (16)
11: (5) 34: (7,1) 55: (5,3)
12:(2,1,1)35:(4,3)56:(4,1,1,1)
13: (6) 37: (12) 58: (10,1)
14: (4,1) 38: (8,1) 59: (17)
17: (7) 40: (3,1,1,1) 61: (18)
19: (8) 41: (13) 62: (11,1)
20: (3,1,1) 43: (14) 65: (6,3)
22: (5,1) 44: (5,1,1) 67: (19)
23:(9)46:(9,1)68:(7,1,1)
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数学
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pq[y_]:=长度[Select[Range[Length[y]],#==y[[#]]&]];
选择[Range[100],pq[Reverse[Flatten[Cases[FactorInteger[#],{p_,k_}:>表格[PrimePi[p],{k}]]]]==0&]
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交叉参考
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*=未验证
囊性纤维变性。A062457号,A064410号,A065770型,A093641号,157990英镑,A342192型,A352486,A352823型,A352824型,52825英镑,A352831型,A352832型.
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关键词
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非n
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作者
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状态
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经核准的
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