A251905-OEIS公司

A251905型

T（n，k）=（n+2）X（k+2）0..3个数组的数目，每个3X3子块的行和列和等于4或5，每个对角线和反对角线的和等于4或者5

1652, 2596, 2596, 3312, 1548, 3312, 5264, 1586, 1586, 5264, 9208, 1962, 1536, 1962, 9208, 16532, 3910, 2772, 2772, 3910, 16532, 23868, 6744, 6408, 4208, 6408, 6744, 23868, 39884, 9830, 10662, 10266, 10266, 10662, 9830, 39884, 71752, 18590, 16848

(列表;桌子;图表;参考;听;历史;文本;内部格式)

抵消

1,1

表格开始

...1652..2596...3312...5264....9208...16532...23868....39884....71752....133166

...2596..1548...1586...1962....3910....6744....9830....18590....34826.....59814

...3312..1586...1536...2772....6408...10662...16848....35992....68496....124364

...5264..1962...2772...4208...10266...17976...28288....66216...121684....210948

...9208..3910...6408..10266...30504...61686..101508...274648...604412...1157444

..16532..6744..10662..17976...61686..120984..202792...630776..1468994...2840656

..23868..9830..16848..28288..101508..202792..325504..1183404..2519780...4658222

..39884.18590..35992..66216..274648..630776.1183404..4618864.11820480..26443744

..71752.34826..68496.121684..604412.1468994.2519780.11820480.31618896..68114556

.133166.59814.124364.210948.1157444.2840656.4658222.26443744.68114556.127303080

链接

R.H.哈丁，n=1..644时的n，a（n）表

配方奶粉

k列的经验值：

k=1:n>45时[35阶线性递归]

k=2:n>33时[订单26]

k=3:n>30时[订单26]

k=4：对于n>37，[订单33]

k=5:[订单36]，对于n>40

k=6:对于n>48，[订单44]

k=7:对于n>58，[顺序54]

例子

n=4k=4的一些解

..3..3..0..0..2..1....1..0..1..0..2..0....1..2..0..1..1..1....2..0..1..0..1..0

..0..2..1..3..3..0....3..0..3..0..3..0....0..3..0..3..0..3....3..0..3..0..3..0

..3..3..0..0..2..1....3..1..3..2..3..2....2..3..1..3..2..3....3..1..3..2..3..1

..0..2..1..3..3..0....0..2..0..1..0..1....1..0..2..0..1..0....0..2..0..1..0..2

..3..3..0..0..1..2....0..3..0..3..0..3....3..0..3..0..3..0....0..3..0..3..0..3

..0..1..2..3..3..1....2..3..2..3..1..3....2..2..3..2..2..2....1..3..2..3..1..3

交叉参考

上下文中的序列：A203864型 A154075型 A251897型*A251898型 A250929型 A054809号

相邻序列：1952年2月 A251903型 A251904型*A251906型 A251907型 A251908型

关键词

非n,表

作者

R.H.哈丁2014年12月10日

状态

经核准的