|
|
A184369号 |
| 1/3(n+1)X 3 0..2数组的数量,每个2 X 2子块至少有两个水平或垂直连接的相等元素。 |
|
2
|
|
|
153, 2755, 49235, 880781, 15754461, 281803871, 5040682279, 90163722073, 1612776998193, 28848073268443, 516011408652059, 9230001997285733, 165098940527912805, 2953158641948611223, 52823754874667184367
(列表;图表;参考;听;历史;文本;内部格式)
|
|
|
抵消
|
1,1
|
|
评论
|
|
|
链接
|
|
|
配方奶粉
|
经验:a(n)=17*a(n-1)+19*a(n-2)-57*a(n3)+18*a(-n4)。
经验公式:x*(153+154*x-507*x^2+162*x^3)/(1-17*x-19*x^2+57*x^3-18*x^4)-科林·巴克,2018年2月27日
|
|
例子
|
a(1,1)=0的5 X 3的一些解:
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..1..0..2....1..2..2....0..1..0....0..2..2....1..1..1....0..2..0....1..1..0
..1..2..2....0..2..0....1..1..1....1..1..2....1..2..0....1..2..0....1..0..0
..1..2..2....1..1..0....2..1..2....2..1..2....1..1..1....1..2..0....2..2..2
..1..1..1....2..2..2....0..1..0....0..0..0....0..2..0....0..2..1....0..2..0
|
|
交叉参考
|
|
|
关键词
|
非n
|
|
作者
|
|
|
状态
|
已批准
|
|
|
|