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提示 （来自的问候整数序列在线百科全书!) A250066型 长度为7+6 0..n的数组的数量，其中没有七个连续项，任何两个项的最大值等于其余五个项的最小值。 1 21, 21276, 2398187, 81138873, 1329866076, 13468748489, 96884873906, 539919000270, 2469626954391, 9653001714762, 33196888242117, 102660657566831, 290292185100918, 760444039774479, 1864760913276308, 4316829401163980 (列表；图表；参考；听；历史；文本；内部格式) 抵消 1,1 评论 第7行，共7行A250059型. 链接 R.H.哈丁，n=1..31时的n，a（n）表 配方奶粉 经验：a（n）=n^13-（3403/2772）*n^12+（261607/27720/4620）*编号。 经验公式：x*（21+20982*x+2102234*x^2+49492727*x^3+404433428*x^4+1382576034*x^5+2163711902*x^6+1598287676*x^7+544743783*x^8+77937032*x^9+368780*x^10+27181*x^11）/（1-x）^14-科林·巴克2017年9月8日 例子 n=2的一些解 ..1....2....1....2....2....1....1....2....0....2....0....0....0....2....2....2 ..1....2....0....2....2....1....0....1....2....2....2....2....1....2....2....0 ..2....2....0....0....2....1....2....1....1....1....2....1....2....0....2....2 ..1....1....2....1....2....0....1....2....2....0....2....1....0....2....0....2 ..2....2....2....2....1....0....1....1....0....0....2....2....2....2....1....2 ..0....2....2....2....2....2....2....0....1....2....1....1....2....1....2....1 ..0....0....1....2....0....2....0....0....1....2....0....0....2....2....2....2 ..2....2....2....2....0....1....1....1....0....1....0....0....0....0....0....0 ..2....2....2....2....1....2....0....1....2....1....2....2....1....1....2....2 ..1....0....0....0....2....2....1....2....2....2....1....1....2....0....2....0 ..1....2....2....0....2....2....2....1....2....0....1....2....0....1....0....2 ..1....2....2....1....1....1....1....1....0....0....2....2....1....2....2....1 ..0....1....2....1....2....2....2....0....1....2....2....2....2....1....1....2 交叉参考 上下文中的序列：A115485号 A172724号 A001167号*A299035型 A189648号 A351804型 相邻序列：A250063型 A250064型 A250065型*A250067型 A250068型 2500元 关键词 非n 作者 R.H.哈丁2014年11月11日 状态 经核准的

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