A192713-OEIS公司

A192713号

每行求和为零的12X2整数矩阵的数量，行元素按非递减顺序排列，行按字典顺序排列，元素的平方和<=2*n^2（总模平方不超过2*n^ 2的12个零和2-向量的集合数量，忽略向量和分量排列）

2, 6, 19, 53, 133, 310, 669, 1371, 2684, 5037, 9125, 16021, 27343, 45523, 74103, 118121, 184828, 284258, 430192, 641623, 944008, 1371445, 1968786, 2795325, 3927604, 5465114, 7534219, 10297413, 13958709, 18775675, 25067921, 33235421 (列表;图表;参考;听;历史;文本;内部格式)

	抵消	`1,1`
	评论	`第（12,2，n）列A192710型`
	链接	`R.H.哈丁，n=1..65时的n，a（n）表`
	例子	`12X2<=2*4^2的一些解决方案` `.-2..2...-2..2...-2..2...-1..1...-2..2...-2..2...-1..1....0..0...-2..2...-1..1` `.-1..1...-1..1...-1..1...-1..1...-1..1...-2..2...-1..1....0..0...-1..1...-1..1` `.1-1…-1-1…-1-1…-1-1…-1-1…-1-1…-2-2…-1-1…..0…-1-1…..0` `.-1..1...-1..1...-1..1...-1..1...-1..1....0..0...-1..1....0..0...-1..1....0..0` `..0..0...-1..1...-1..1...-1..1...-1..1....0..0....0..0....0..0...-1..1....0..0` `..0..0....0..0...-1..1...-1..1...-1..1....0..0....0..0....0..0...-1..1....0..0` `..0..0....0..0...-1..1...-1..1...-1..1....0..0....0..0....0..0...-1..1....0..0` `..0..0....0..0...-1..1...-1..1...-1..1....0..0....0..0....0..0...-1..1....0..0` `..0..0....0..0...-1..1....0..0...-1..1....0..0....0..0....0..0...-1..1....0..0` `..0..0....0..0...-1..1....0..0...-1..1....0..0....0..0....0..0...-1..1....0..0` `..0..0....0..0....0..0....0..0...-1..1....0..0....0..0....0..0...-1..1....0..0` `..0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0...-1..1....0..0`
	交叉参考	`上下文中的序列：A192711号 A192712号 214948英镑A014559号 A192714号 A027098级` `相邻序列：A192710型 A192711号 A192712号A192714号 A192715号 A192716号`
	关键词	`非n`
	作者	`R.H.哈丁2011年7月7日`
	状态	`经核准的`

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最后修改时间：美国东部时间2024年5月3日06:44。包含372206个序列。（在oeis4上运行。）