n | a(n) |
---|---|
1 | 1 |
2 | 5 |
3 | 15 |
4 | 41 |
5 | 107 |
6 | 273 |
7 | 707 |
8 | 1817 |
9 | 4617 |
10 | 11867 |
11 | 30425 |
12 | 76857 |
13 | 197603 |
14 | 505871 |
15 | 1275465 |
16 | 3276563 |
17 | 8406527 |
18 | 21165273 |
19 | 54338627 |
20 | 139513379 |
21 | 351447657 |
22 | 901789811 |
23 | 2304725075 |
24 | 5840498937 |
25 | 14978318243 |
26 | 38107010435 |
27 | 97141424265 |
28 | 248995117523 |
29 | 630641012147 |
[1,5,15,41,107,273,707,1817,4617,11867,30425, 76857,197603,505871,1275465,3276563,8406527, 21165273,54338627,139513379,351447657,901789811, 2304725075,5840498937,14978318243,38107010435, 97141424265,248995117523,630641012147] |