OEIS哀悼西蒙斯感谢西蒙斯基金会支持包括OEIS在内的许多科学分支的研究。
登录
OEIS由OEIS基金会的许多慷慨捐赠者.

 

徽标
提示
(来自的问候整数序列在线百科全书!)
A194024号 T(n,k)=在等腰三角形上的n X n X n三角形网格上安排k个点的方法数,以使其在中心高度的中点处保持平衡。 4
1,0,0,0,0,0,0,2,0,0,0,0,0,0,1,0,1,0,4,0,0,0,0,8,13,0,0,0,0,0,0,0,0,8,0,0,0,0,0,0,40,75,0,0,1,0,0,0,0,47,0,182,0,12,0,0,0,0,0,0,0,39,0,0,387,107,0,0,0,0,21,0,1606,0,756、0、18、0、0、0、0、7、560、0、0、4247、1382、0、0、1、0、0 (列表桌子图表参考历史文本内部格式)
偏移
1,9
评论
表格开始:
.1..0...0.....0.....0.......0.......0.........0.........0...........0
.0..0...0.....0.....0.......0.......0.........0.........0...........0
.0..2...0.....1.....0.......0.......0.........0.........0...........0
.0..0...0.....8.....0.......0.......0.........0.........0...........0
.1..4..13....26....40......47......39........21.........7...........1
.0..0...0....75.....0.......0.......0.......560.........0...........0
.0..8...0...182.....0....1606.......0......6425.........0.......11970
.0..0...0...387.....0.......0.......0.....47385.........0...........0
.1.12.107...756..4247...19750...77775....262382....764759.....1939038
.0..0...0..1382.....0.......0.......0...1180469.........0...........0
.0.18...0..2379.....0..141611.......0...4530030.........0....85972989
.0..0...0..3915.....0.......0.......0..15317274.........0...........0
.1.24.432..6198.72732..723299.6211053..46696163.310813712..1848236136
.0..0...0..9486.....0.......0.......0.130554918.........0...........0
.0.32...0.14110.....0.2915773.......0.339126948.........0.24650185783
.0..0...0.20475.....0.......0.......0.826821895.........0...........0
链接
例子
n=5,k=3,在第3行中点平衡的一些解决方案:
......1..........0..........0..........0..........1..........0..........1
.....0.0........0.1........1.0........0.0........0.0........0.1........0.0
....0.1.0......0.1.0......1.0.0......1.1.1......0.0.1......0.0.1......1.0.0
...0.0.0.0....0.1.0.0....0.0.0.1....0.0.0.0....0.0.0.0....1.0.0.0....0.0.0.0
..0.0.1.0.0..0.0.0.0.0..0.0.0.0.0..0.0.0.0.0..0.1.0.0.0..0.0.0.0.0..0.0.0.1.0
交叉参考
关键词
非n
作者
R.H.哈丁2011年8月12日
状态
经核准的

查找|欢迎光临|维基|注册|音乐|地块2|演示|索引|浏览|更多|网络摄像头
贡献新序列。或评论|格式|样式表|变换|超级搜索|最近
OEIS社区|维护人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5月17日18:28。包含372603个序列。(在oeis4上运行。)