|
| |
|
| A252983型 |
| T（n，k）=左上角为0，右下角为0的nXk非负整数数组的个数，其主移动距离减去2，且每一个值向右、对角或向下递增0或1 |
|
7
|
|
|
|
0, 0, 0, 1, 0, 1, 3, 1, 1, 3, 6, 13, 1, 13, 6, 10, 41, 33, 33, 41, 10, 15, 85, 266, 68, 266, 85, 15, 21, 145, 851, 1247, 1247, 851, 145, 21, 28, 221, 1836, 8487, 4657, 8487, 1836, 221, 28, 36, 313, 3221, 27905, 67537, 67537, 27905, 3221, 313, 36, 45, 421, 5006, 62977
(列表;桌子;图表;参考;听;历史;文本;内部格式)
|
|
|
|
抵消
|
1,7
|
|
|
评论
|
表格开始
..0...0....1......3.......6........10..........15............21.............28
..0...0....1.....13......41........85.........145...........221............313
..1...1....1.....33.....266.......851........1836..........3221...........5006
..3..13...33.....68....1247......8487.......27905.........62977.........114433
..6..41..266...1247....4657.....67537......433401.......1481460........3510600
.10..85..851...8487...67537....432842.....5672484......36112108......129234988
.15.145.1836..27905..433401...5672484....60650883.....766674140.....4970634131
.21.221.3221..62977.1481460..36112108...766674140...13458882036...170090480091
.28.313.5006.114433.3510600.129234988..4970634131..170090480091..4857082197177
.36.421.7191.182273.6637020.322183180.18692194423.1139074556531.62656851440792
|
|
|
链接
|
|
|
|
配方奶粉
|
第k列的经验值：
k=1:a（n）=（1/2）*n^2-（3/2）*n+1
k=2:a（n）=8*n^2-44*n+61对于n>2
k=3:a（n）=200*n^2-1615*n+3341，对于n>4
k=4:a（n）=8192*n^2-87808*n+241153，对于n>6
k=5:a（n）=557568*n^2-7467372*n+25553940，对于n>8
k=6:a（n）=63438848*n^2-1019729920*n+4176308004，对于n>10
k=7:a（n）=12103190528*n^2-226960984822*n+1081747760523，对于n>12
|
|
|
例子
|
n=4k=4的一些解
..0..0..1..1....0..0..0..0....0..0..0..1....0..0..0..0....0..0..1..1
..0..1..1...1...0...0...0...0...0...0...1...0...0...0...1...0...1...0...1...1
..0..1..1..1....0..0..1..1....0..0..0..1....0..0..1..1....1..1..1..1
..0..1..1..1....0..1..1..1....0..0..1..1....0..0..1..1....1..1..1..1
|
|
|
交叉参考
|
|
|
|
关键词
|
|
|
|
作者
|
|
|
|
状态
|
经核准的
|
| |
|
|
