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1, 2, 1, 3, 1, 4, 2, 3, 2, 4, 1, 5, 1, 6, 2, 5, 1, 7, 3, 4, 1, 8, 2, 6, 1, 9, 2, 7, 3, 5, 2, 8, 1, 10, 1, 11, 3, 6, 2, 9, 1, 12, 4, 5, 1, 13, 3, 7, 1, 14, 2, 10, 4, 6, 2, 11, 1, 15, 3, 8, 1, 16, 2, 12, 3, 9, 1, 17, 4, 7, 1, 18, 2, 13, 2, 14, 4, 8, 1, 19, 2, 15
(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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无平方半素数是任意两个不同素数的乘积。n的素数指数是一个数字m，使得第m个素数除以n。n的多素数指数集是A112798号.
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链接
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示例
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术语序列及其基本指数开始于：
6: {1,2} 57: {2,8} 106: {1,16} 155: {3,11}
10: {1,3} 58: {1,10} 111: {2,12} 158: {1,22}
14: {1,4} 62: {1,11} 115: {3,9} 159: {2,16}
15: {2,3} 65: {3,6} 118: {1,17} 161: {4,9}
21: {2,4} 69: {2,9} 119: {4,7} 166: {1,23}
22: {1,5} 74: {1,12} 122: {1,18} 177: {2,17}
26: {1,6} 77: {4,5} 123: {2,13} 178: {1,24}
33: {2,5} 82: {1,13} 129: {2,14} 183: {2,18}
34: {1,7} 85: {3,7} 133: {4,8} 185: {3,12}
35: {3,4} 86: {1,14} 134: {1,19} 187: {5,7}
38: {1,8} 87: {2,10} 141: {2,15} 194: {1,25}
39: {2,6} 91: {4,6} 142: {1,20} 201: {2,19}
46: {1,9} 93: {2,11} 143: {5,6} 202: {1,26}
51:｛2,7｝94:｛1,15｝145:｛3,10｝203:｛4,10｝
55: {3,5} 95: {3,8} 146: {1,21} 205: {3,13}
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数学
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连接@@Cases[Select[Range[100]，SquareFreeQ[#]&&PrimeOmega[#]==2&]，k_：>PrimePi/@First/@FactorInteger[k]]
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交叉参考
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囊性纤维变性。A030229号,A056239号,A065516型,A112798号,A115392号,A167171号,1976年1月,A320893型,A338904型,A338906型,A338907型,A338910型,A338911.
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关键词
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作者
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状态
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经核准的
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