|
|
A156046号 |
| 由反系数构成的对称三角形序列:t0(n,m)=(2+n!-m!-(n-m)!+2+分区P[n]-分区P[m]-分区P[n-m]);t(n,m)=(t0(n,m)+反向[t0(n,m)])/2 |
|
0
|
|
|
2, 2, 2, 2, 4, 2, 2, 7, 7, 2, 2, 22, 25, 22, 2, 2, 100, 118, 118, 100, 2, 2, 606, 702, 717, 702, 606, 2, 2, 4326, 4928, 5021, 5021, 4928, 4326, 2, 2, 35289, 39611, 40210, 40288, 40210, 39611, 35289, 2, 2, 322570, 357855, 362174, 362758, 362758, 362174, 357855
(列表;桌子;图表;参考;听;历史;文本;内部格式)
|
|
|
抵消
|
0,1
|
|
评论
|
行总和为:
{2, 4, 8, 18, 73, 440, 3337, 28554, 270512, 2810718, 31841200,...}.
当被二除时,这个序列非常接近帕斯卡三角形,
|
|
链接
|
|
|
配方奶粉
|
t0(n,m)=(2+n!-m!-(n-m)!+2+分区P[n]-分区P[m]-分区P[n-m]);
t(n,m)=(t0(n,m)+反向[t0(n,m)])/2
|
|
例子
|
{2},
{2, 2},
{2, 4, 2},
{2, 7, 7, 2},
{2, 22, 25, 22, 2},
{2, 100, 118, 118, 100, 2},
{2, 606, 702, 717, 702, 606, 2},
{2, 4326, 4928, 5021, 5021, 4928, 4326, 2},
{2, 35289, 39611, 40210, 40288, 40210, 39611, 35289, 2},
{2, 322570, 357855, 362174, 362758, 362758, 362174, 357855, 322570, 2},
{2, 3265934, 3588500, 3623782, 3628086, 3628592, 3628086, 3623782, 3588500, 3265934, 2}
|
|
数学
|
清除[t];
t[n,m]=(2+n!-m!-(n-m)!+2+分区P[n]-分区P[m]-分区P[n-m]);
表[(表[t[n,m],{m,0,n}]+反向[表[t[n,m],{m,O,n}])/2,{n,0,10}];
压扁[%]
|
|
交叉参考
|
|
|
关键词
|
|
|
作者
|
|
|
状态
|
经核准的
|
|
|
|