A203297-OEIS公司

A203297型

-n..n中14个非递减整数组成的数组的数目，其和为零且等于大于零且小于零的数字

8, 36, 280, 1844, 9880, 43958, 168314, 568933, 1734054, 4842044, 12545910, 30469542, 69935848, 152731858, 319150868, 641127127, 1243115122, 2334434336, 4258292458, 7564553798, 13115830616, 22239519138, 36942424868, 60209406935

(列表;图表;参考;听;历史;文本;内部格式)

抵消

1,1

第7行，共行A203291型

链接

R.H.哈丁，n=1..210时的n，a（n）表

配方奶粉

经验公式：a（n）=3*a（n-1）-a（n-2）-3*a（n-3）+a（n-4）-a）+3*a（n-22）+a（n-23）+5*a（n-24）+6*a-2*a（n-37）-3*a（n-38）-2*a

例子

n=3的一些解

.-2...-3...-3...-3...-3...-3...-3...-3...-3...-3...-2...-3...-2...-3...-3...-3

.-2...-2...-3...-2...-3...-3....0...-3...-2...-3...-2...-3...-2...-3...-3...-3

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

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

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

..0...-1...-1....0....0...-1....0...-2...-1...-1....0...-1...-2...-1...-1...-1

..0....0....0....0....0....0....0....0....0...-1....0...-1...-1....0...-1....0

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

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

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

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

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

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

..2....2....3....3....3....3....3....3....3....2....3....2....3....3....3....3

交叉参考

上下文中的序列：A032794号 A000757号 A126756号*A181072号 A058823号 A244301型

相邻序列：A203294型 A203295型 A203296型*A203298型 A203299型 2003年2月

关键词

非n

作者

R.H.哈丁2011年12月31日

状态

经核准的