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(来自的问候整数序列在线百科全书!)
A304270型 T(n,k)=nXk 0..1数组的数量,每个元素不等于0、1、5或8个主移动相邻元素,左上角元素为零。 7
1, 2, 2, 3, 1, 3, 5, 3, 3, 5, 8, 5, 6, 5, 8, 13, 7, 10, 10, 7, 13, 21, 13, 19, 21, 19, 13, 21, 34, 23, 37, 50, 50, 37, 23, 34, 55, 37, 67, 116, 146, 116, 67, 37, 55, 89, 63, 124, 259, 404, 404, 259, 124, 63, 89, 144, 109, 235, 601, 1074, 1246, 1074, 601, 235, 109, 144, 233 (列表;桌子;图表;参考;;历史;文本;内部格式)
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表格开始
..1..2...3....5....8....13.....21......34......55.......89.......144.......233
..2..1...3....5....7....13.....23......37......63......109.......183.......309
..3..3...6...10...19....37.....67.....124.....235......436.......808......1513
..5..5..10...21...50...116....259.....601....1397.....3196......7359.....17016
..8..7..19...50..146...404...1074....2990....8316....22660.....62314....172244
.13.13..37..116..404..1246...3788...12342...39252...122156....388150...1234248
21.23..67.259.1074.3788.1376753839.201274.741275 2806825.10575217
.34.37.124..601.2990.12342..53839..252509.1118021..4901568..22174589..99427544
.55.63.235.1397.8316.39252.201274.1118021.5755625.29475545.156881417.822798993
链接
配方奶粉
k列的经验值:
k=1:a(n)=a(n-1)+a(n-2)
对于n>4,k=2:a(n)=a(n-1)+2*a(n-3)
k=3:a(n)=a(n-1)+3*a(n-3),对于n>4
k=4:a(n)=a(n-1)+a(n-2)+5*a(n-3)+a
k=5:对于n>10,[顺序9]
k=6:对于n>13,[顺序12]
k=7:对于n>25,[订单24]
例子
n=5k=4的一些解
..0..1..0..0. .0...0...0...0。0...0...0...0。0..0..1..0. .0..0..0..0
..0..0..0..0. .1..0..0..1. .0...0...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..1..0..0
..0..0..0..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..0..1..0. .0..0..0..0
交叉参考
第1列为A000045号(n+1)。
第2列为A003229号(n-1)。
关键词
非n
作者
R.H.哈丁2018年5月9日
状态
已批准

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