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A152716号 |
| 按行读取三角形T(n,k):T(n、k)=4^min(k,n-k)=4^A004197号(n,k)。 |
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6
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1, 1, 1, 1, 4, 1, 1, 4, 4, 1, 1, 4, 16, 4, 1, 1, 4, 16, 16, 4, 1, 1, 4, 16, 64, 16, 4, 1, 1, 4, 16, 64, 64, 16, 4, 1, 1, 4, 16, 64, 256, 64, 16, 4, 1, 1, 4, 16, 64, 256, 256, 64, 16, 4, 1, 1, 4, 16, 64, 256, 1024, 256, 64, 16, 4, 1
(列表;桌子;图表;参考;听;历史;文本;内部格式)
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抵消
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0,5
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评论
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行总和是:{1、2、6、10、26、42、106、170、426、682、1706…}=A061547号(n+2)。
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链接
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配方奶粉
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例子
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{1},
{1, 1},
{1, 4, 1},
{1, 4, 4, 1},
{1, 4, 16, 4, 1},
{1, 4, 16, 16, 4, 1},
{1, 4, 16, 64, 16, 4, 1},
{1, 4, 16, 64, 64, 16, 4, 1},
{1, 4, 16, 64, 256, 64, 16, 4, 1},
{1, 4, 16, 64, 256, 256, 64, 16, 4, 1},
{1, 4, 16, 64, 256, 1024, 256, 64, 16, 4, 1}
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数学
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清除[a,k,m];k=4;a[0]={1};a[1]={1,1};
a[n_]:=a[n]=连接[{1},k*a[n-2],{1}];
表[a[n],{n,0,10}];
压扁[%]
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交叉参考
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关键词
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作者
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扩展
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状态
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经核准的
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