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A259776号 |
| 没有固定点的[n]置换p的数量A(n,k)和受k限制的元素位移:1<=|p(i)-i|<=k,方阵A(n、k),n>=0,k>=0。 |
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11
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1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 2, 1, 0, 1, 0, 1, 2, 4, 0, 0, 1, 0, 1, 2, 9, 6, 1, 0, 1, 0, 1, 2, 9, 24, 13, 0, 0, 1, 0, 1, 2, 9, 44, 57, 24, 1, 0, 1, 0, 1, 2, 9, 44, 168, 140, 45, 0, 0, 1, 0, 1, 2, 9, 44, 265, 536, 376, 84, 1, 0
(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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0,19
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评论
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发件人瓦茨拉夫·科特索维奇2015年7月7日:(开始)对于k>1,A(n,k)~c(k)*d(k)^n
k c(k)d(k)
2 0.2840509026895102746628049030651... 1.8832035059135258641689474653620...
3 0.1678494211968692989590951622212... 2.6304414743928951523517253855770...
4 0.0973070675347403976445165510589... 3.3758288741377846847522960161445...
5 0.0552389982575367440330445172521... 4.1183824671958029895499633437571...
6 0.0309726120341077011398575643793... 4.8588208495640240252838055706997...
7 0.0172064353582683268003622374813... 5.5979905586951369718393573797927...
8 0.0094902135663231445267663712259... 6.3363450921766600853069060904417...
9 0.00520430877801650454166967632... 7.0741444217884608367707985...
10 0.0028405987031922... 7.811548995086...
(结束)
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链接
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配方奶粉
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例子
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方阵A(n,k)开始:
1, 1, 1, 1, 1, 1, 1, 1, ...
0, 0, 0, 0, 0, 0, 0, 0, ...
0, 1, 1, 1, 1, 1, 1, 1, ...
0, 0, 2, 2, 2, 2, 2, 2, ...
0, 1, 4, 9, 9, 9, 9, 9, ...
0, 0, 6, 24, 44, 44, 44, 44, ...
0, 1, 13, 57, 168, 265, 265, 265, ...
0, 0, 24, 140, 536, 1280, 1854, 1854, ...
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MAPLE公司
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b: =proc(n,s,k)选项记忆`if`(n=0,1,`if`(n+k in s,
b(n-1,(s减去{n+k})并`if`(n-k>1,{n-k-1},{}),k),
加法(`if`(j=n,0,b(n-1,(s减去{j})并集
`如果`(n-k>1,{n-k-1},{}),k)),j=s))
结束时间:
A: =(n,k)->`如果`(k=0,`如果'(n=0,1,0),b(n,{$max(1,n-k)..n},k)):
seq(seq(A(n,d-n),n=0..d),d=0..12);
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数学
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b[n_,s_,k_]:=b[n,s,k]=如果[n==0,1,如果[MemberQ[s,n+k],b[n-1,连接[s~补码~{n+k}]~并集~If[n-k>1,{n-k-1},{}],k],和[If[j==n,0,b[n-1,连接[s~补码[j}]~Union~如果[n-k>1,{n-k-1},{},k]],{j,s}]]];
A[n_,k_]:=如果[k==0,如果[n==0、1、0],b[n,范围[Max[1,n-k],n],k]];
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交叉参考
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k=0-10列给出:A000007美元,A059841美元,A033305号,A079997号,A259777号,A259778号,A259779号,A259780型,A259781型,A259782型,A259783型.
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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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