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(来自的问候整数序列在线百科全书!)
A251236型 T(n,k)=(n+1)X(k+1)0..3数组的数量,每个2 X 2子块求和为6,没有2 X 2子块正好有两个非零项。 8
38, 110, 110, 322, 270, 322, 966, 694, 694, 966, 2930, 1870, 1592, 1870, 2930, 8982, 5194, 3886, 3886, 5194, 8982, 27714, 14786, 9914, 8686, 9914, 14786, 27714, 85958, 42850, 26224, 20490, 20490, 26224, 42850, 85958, 267602, 125934, 71322, 50570 (列表桌子图表参考历史文本内部格式)
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表格开始:
.....38.....110.....322.....966....2930....8982....27714....85958...267602
....110.....270.....694....1870....5194...14786....42850...125934...374166
....322.....694....1592....3886....9914...26224....71322...198318...561212
....966....1870....3886....8686...20490...50570...129378...340782...918878
...2930....5194....9914...20490...44966..103926...250622...626122..1610186
...8982...14786...26224...50570..103926..225936...514950..1222090..3000620
..27714...42850...71322..129378..250622..514950..1112526..2511890..5892002
..85958..125934..198318..340782..626122.1222090..2511890..5407182.12127278
.267602..374166..561212..918878.1610186.3000620..5892002.12127278
.835574.1121566.1611002.2525262.4240330.7579486.14279706
链接
配方奶粉
k列的经验值(k=3对于k=1和k=2也适用):
k=1:a(n)=7*a(n-1)-12*a(n-2)-8*a(n-3)+24*a(-n-4)
k=2:[顺序9]
k=3:[顺序11]
k=4:[相同顺序11]
k=5:[相同顺序11]
k=6:[相同顺序11]
k=7:[相同顺序11]
例子
n=4,k=4的一些解:
..0..2..0..2..1....1..1..1..2..1....1..2..3..2..3....3..1..2..0..3
..1..3..1..3..0....1..3..1..2..1....3..0..1..0..1....2..0..3..1..2
..0..2..0..2..1....0..2..0..3..0....1..2..3..2..3....2..2..1..1..2
..1..3..1..3..0....1..3..1..2..1....3..0..1..0..1....1..1..2..2..1
..0..2..0..2..1....1..1..1..2..1....1..2..3..2..3....2..2..1..1..2
交叉参考
关键词
非n,
作者
R.H.哈丁2014年11月30日
状态
经核准的

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