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A303046型 |
| n-Moebius阶梯中的最小总支配集数。 |
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3
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1, 6, 9, 8, 25, 3, 196, 56, 9, 20, 121, 3, 1521, 154, 9, 32, 289, 3, 5776, 300, 9, 44, 529, 3, 15625, 494, 9, 56, 841, 3, 34596, 736, 9, 68, 1225, 3, 67081, 1026, 9, 80, 1681, 3, 118336, 1364, 9, 92, 2209, 3, 194481, 1750, 9, 104, 2809, 3, 302500, 2184, 9
(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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链接
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常系数线性递归的索引项,签名(0,0,00,0,1,0,5,0,0,0,0.0,-10,0,,0,0-0,10,0:0,0,-5,0,0.0,1)。
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公式
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当n>30时,a(n)=5*a(n-6)-10*a(n-12)+10*a(n18)-5*a(-n24)+a(n-30)。
a(6k)=3,a(6k+1)=(6*k+1)^2*。(结束)
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数学
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表[分段[{{3,Mod[n,6]==0},{(n(n+5)/6)^2,Mod[m,6]==1},},[3](2n+5
线性递归[{0,0,0,0,0,5,0,0,0,0,0,-10,0,0,0,0,10,0,0,0,0,0,0,0,-5,0,0,0,0,0,1},{1,6,9,8,25,3,196,56,9,20,121,3,1521,154,9,32,289,3,5776,300,9,44,529,3,15625,494,9,56,841,3},200]
剩余@系数列表[级数[3 x ^6/(1-x^6)-9 x ^3/(-1+x^6 0,200}],x]
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黄体脂酮素
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(PARI)a(n)=我的(k=n\6,r=n%6);如果(r<3,如果(r==0,3,if(r==1,n^2*(k+1)^2,n*(4*k+3))),如果(r==3,9,如果(r==4,2*n,n^2))\\安德鲁·霍罗伊德2018年4月18日
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交叉参考
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关键字
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非n,容易的
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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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