帮我算几个找规律的题目.1,1,2,6,1,3,5,7,9,13,15,,0,1,1,2,4,7,13,2,3,10,15,26,_数学解答

帮我算几个找规律的题目.
1,1,2,6,
1,3,5,7,9,13,15,,
0,1,1,2,4,7,13,
2,3,10,15,26,
1,10,31,70,133,
1,2,3,7,46,
0,1,3,8,22,63,

人气：234 ℃　时间：2020-04-12 03:35:36

解答

1,1,2,6,12 (1*2,2*3,3*4=12) 1,3,5,7,9,13,15,17(奇数分组吧)1,1,1,2,4,7,13,25 (4*2-1,7*2-1,13*2-1=25)2,3,10,15,26,39 偶数项与其前一项的比例为2:3;1,10,31,70,133,226 后项减前项得一新数列:9,21,39,63,此新数...