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| A365434型 |
| 按行读取的不规则三角形：T（n，k）是第n级之字形图第k级中的立方体数量，如A347186型，n>=1，k>=1。 |
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2
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1, 3, 1, 4, 2, 7, 5, 3, 1, 6, 4, 2, 12, 9, 7, 5, 3, 1, 8, 6, 4, 2, 15, 13, 11, 9, 7, 5, 3, 1, 13, 9, 7, 5, 2, 18, 16, 14, 12, 10, 8, 6, 4, 2, 12, 10, 8, 6, 4, 2, 28, 24, 22, 20, 16, 14, 12, 9, 7, 5, 3, 1, 14, 12, 10, 8, 6, 4, 2, 24, 22, 20, 18, 16, 14, 12, 10, 8, 6, 4, 2, 24, 19, 17, 15, 11, 9, 7, 3, 1, 1
(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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当且仅当n是2的幂时，第n行按降序列出前n个奇数。
当且仅当n是奇数素数时，第n行按降序列出第一个（n+1）/2个正偶数。
当且仅当n是偶数完美数时，行n按降序列出2*n和前n-1个奇数。
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链接
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例子
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三角形开始：
1;
3, 1;
4, 2;
7, 5, 3, 1;
6, 4, 2;
12, 9, 7, 5, 3, 1;
8, 6, 4, 2;
15, 13, 11, 9, 7, 5, 3, 1;
13, 9, 7, 5, 2;
18, 16, 14, 12, 10, 8, 6, 4, 2;
12, 10, 8, 6, 4, 2;
28, 24, 22, 20, 16, 14, 12, 9, 7, 5, 3, 1;
14, 12, 10, 8, 6, 4, 2;
24, 22, 20, 18, 16, 14, 12, 10, 8, 6, 4, 2;
24, 19, 17, 15, 11, 9, 7, 3, 1, 1;
31, 29, 27, 25, 23, 21, 19, 17, 15, 13, 11, 9, 7, 5, 3, 1;
...
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交叉参考
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囊性纤维变性。A000079号,A000396号,A065091号,A174973号,A196020型,A235791型,A236104型,A237270型,A237271号,A237591型,A237593型,A238524型,245092英镑,A262626型,A347263飞机,A347367飞机,A365195.
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关键字
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非n,标签
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作者
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状态
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经核准的
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