登录
OEIS由OEIS基金会的许多慷慨捐赠者.

 

标志
提示
(来自的问候整数序列在线百科全书!)
A251422型 长度为n+20..2的数组的数目,其最大值减去两倍中值加上相邻三元组的最小值,再乘以等于零的+-1排列 1
9, 41, 97, 341, 1003, 3129, 9439, 28717, 86695, 261789, 788373, 2372693, 7133179, 21434717, 64377579, 193296317, 580236633, 1741470477, 5226041293, 15681654949, 47052540983, 141173946441, 423556852705, 1270745764685, 3812398439683 (列表;图表;参考;;历史;文本;内部格式)
抵消
1,1
评论
第2列,共列A251428型
链接
配方奶粉
经验公式:a(n)=8*a(n-1)-21*a(n-2)+12*a(n3)+36*a(-n4)-66*a
例子
n=9的一些解
..1....2....1....1....2....0....0....0....1....2....1....1....2....0....2....0
..0....2....1....1....0....1....0....2....0....1....1....2....2....1....1....1
..0....0....2....0....2....0....2....0....0....1....1....2....0....0....1....2
..1....0....1....2....0....2....1....1....2....1....2....1....1....0....1....0
..2....0....1....1....1....0....2....2....0....2....1....1....1....2....1....1
..2....1....0....0....2....1....1....2....0....1....1....1....2....2....0....2
..2....1....2....1....1....1....2....2....0....2....2....2....1....0....1....0
..1....2....2....2....1....0....1....2....2....0....1....0....1....1....0....1
..1….1….2….0….0….1….1….1….2….0….0….1….2….2….2….1….1
..1....2....2....0....1....2....1....1....1....0....0....0....0....1....2....0
..2....1....2....2....2....2....2....0....1....2....0....2....1....2....2....2
交叉参考
关键词
非n
作者
R.H.哈丁2014年12月2日
状态
经核准的

查找|欢迎光临|维基|注册|音乐|地块2|Demos公司|索引|浏览|更多|网络摄像头
贡献新序列。或评论|格式|样式表|转换|超级搜索|最近
OEIS社区|维护人员OEIS基金会。

许可协议、使用条款、隐私政策。.

上次修改时间:美国东部夏令时2024年3月28日14:38。包含371254个序列。(在oeis4上运行。)