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| A219716号 |
| 对应元素及其水平或反对角线邻域的最小值随机3Xn数组的数量，但按字典序非递减行和非递增列排序，0..3 3Xn阵列 |
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20, 44, 297, 1751, 7862, 30452, 106421, 345175, 1059499, 3113829, 8821007, 24186180, 64368220, 166638599, 420428489, 1035522928, 2493797431, 5880625520, 13596111695, 30856241755, 68811371991, 150927167533, 325853157602
(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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1,1
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评论
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链接
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配方奶粉
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经验：a（n）=（1/840190544013761740800000）*n^26-（1/64630041847212441600000）*n*25+（107/155112100433309859840000）*n=24+（1/2376104796769280000）*n^23-（103/13233917517004800000）*n ^22+（1681/3005349539512320000）*n 7337659/80669908692172800000）*n^18-（632589611/2688996956405760000）*n^17+（100650580631/2982752643328000）*nC^16-（825235909/424789845480000）*n^15+（13546857698161409/169644072690892800000）*nC 14-（1450780447643119/57979735695360000）*n=13+（1247624255371407/20879270485032960000）*n*12-（41385607935181/39544072888 320000）*n^11+（200847750476333849/1731411158400000）*n^10-（2061348992512452999/1344498478202880000）*n^9-（94689075182485664850649/38318206628782080000 196480000）*n^4+（3109939899102790394890237/12467214862502400）*n^3-（15629911569493226081/207244889280）*n=2+（98999926083919027/74364290）*n-1055987659，对于n>18
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例子
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n=3的一些解
..1..1..1....2..2..1....2..2..2....1..0..0....2..1..0....1..0..0....1..0..0
..1..1..2....1..1..1....2..2..2....1..0..0....0..0..0....1..0..0....1..0..2
..2..2..3....1..1..2....2..0..0....1..0..2....0..1..3....1..0..3....3..2..3
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交叉参考
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关键词
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非n
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作者
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状态
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经核准的
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