N	-Umin
2	1.000
3	3.000
4	6.000
5	9.1038
6	12.7120
7	16.5054
8	19.8215
9	24.1134
10	28.4225
11	32.7660
12	37.9676
13	44.3268
14	47.8451
15	52.3226
16	56.8157
17	61.3180
18	66.5309
19	72.6598
20	77.1770
21	81.6846
22	86.8090
23	92.8445
24	97.3488
25	102.3727