找规律 一:1,3,9,27,81,().二:2,3,4,5,8,7,(),().三:1,1,1,3,5,9,(),()四:0,1,2,3,6,11,(),()五:0,1,3,8,21,55,()六:2,6,12,20,30,42,()七:1,2,4,7,11,16,().八:1,3,6,8,16,18,(),()备注
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/13 06:21:44
![找规律 一:1,3,9,27,81,().二:2,3,4,5,8,7,(),().三:1,1,1,3,5,9,(),()四:0,1,2,3,6,11,(),()五:0,1,3,8,21,55,()六:2,6,12,20,30,42,()七:1,2,4,7,11,16,().八:1,3,6,8,16,18,(),()备注](/uploads/image/z/110131-43-1.jpg?t=%E6%89%BE%E8%A7%84%E5%BE%8B+%E4%B8%80%EF%BC%9A1%2C3%2C9%2C27%2C81%2C%EF%BC%88%EF%BC%89.%E4%BA%8C%EF%BC%9A2%2C3%2C4%2C5%2C8%2C7%2C%EF%BC%88%EF%BC%89%2C%EF%BC%88%EF%BC%89.%E4%B8%89%EF%BC%9A1%2C1%2C1%2C3%2C5%2C9%2C%EF%BC%88%EF%BC%89%2C%EF%BC%88%EF%BC%89%E5%9B%9B%3A0%2C1%2C2%2C3%2C6%2C11%2C%EF%BC%88%EF%BC%89%2C%EF%BC%88%EF%BC%89%E4%BA%94%EF%BC%9A0%2C1%2C3%2C8%2C21%2C55%2C%EF%BC%88%EF%BC%89%E5%85%AD%EF%BC%9A2%2C6%2C12%2C20%2C30%2C42%2C%EF%BC%88%EF%BC%89%E4%B8%83%EF%BC%9A1%2C2%2C4%2C7%2C11%2C16%2C%EF%BC%88%EF%BC%89.%E5%85%AB%EF%BC%9A1%2C3%2C6%2C8%2C16%2C18%2C%EF%BC%88%EF%BC%89%2C%EF%BC%88%EF%BC%89%E5%A4%87%E6%B3%A8)
找规律 一:1,3,9,27,81,().二:2,3,4,5,8,7,(),().三:1,1,1,3,5,9,(),()四:0,1,2,3,6,11,(),()五:0,1,3,8,21,55,()六:2,6,12,20,30,42,()七:1,2,4,7,11,16,().八:1,3,6,8,16,18,(),()备注
找规律 一:1,3,9,27,81,().二:2,3,4,5,8,7,(),().三:1,1,1,3,5,9,(),()
四:0,1,2,3,6,11,(),()
五:0,1,3,8,21,55,()
六:2,6,12,20,30,42,()
七:1,2,4,7,11,16,().
八:1,3,6,8,16,18,(),()
备注:每一道题得答案和规律请参照我出题的方式.规律请写清楚.
找规律 一:1,3,9,27,81,().二:2,3,4,5,8,7,(),().三:1,1,1,3,5,9,(),()四:0,1,2,3,6,11,(),()五:0,1,3,8,21,55,()六:2,6,12,20,30,42,()七:1,2,4,7,11,16,().八:1,3,6,8,16,18,(),()备注
一.1,3,9,27,81,(243)为3的N次方
二:2,3,4,5,8,7,(16),(9).奇数项为2的N次方,偶数项为奇数3,5,7,9..
三:1,1,1,3,5,9,(17),(31)每项为其前三项的和
四:0,1,2,3,6,11,(20),(37)每项为其前三项的和
五:0,1,3,8,21,55,(144)兔子数列隔一项
六:2,6,12,20,30,42,(56) an=n(n+1)
七:1,2,4,7,11,16,(22).分别每项+1,+2,+3
八:1,3,6,8,16,18,(36),(38)每项+2,X2的规律
一、依次是3的0,1,2,3~次方