n | a(n) |
---|---|
1 | 5 |
2 | 15 |
3 | 55 |
4 | 205 |
5 | 829 |
6 | 3409 |
7 | 14569 |
8 | 63319 |
9 | 280319 |
10 | 1256567 |
11 | 5695487 |
12 | 26039187 |
13 | 119939427 |
14 | 555899247 |
15 | 2590404239 |
16 | 12127122989 |
17 | 57005914349 |
18 | 268933430849 |
19 | 1272801132329 |
20 | 6041172226049 |
21 | 28747703565329 |
22 | 137119782755669 |
23 | 655421041672109 |
24 | 3138947897124609 |
[5,15,55,205,829,3409,14569,63319,280319,1256567, 5695487,26039187,119939427,555899247,2590404239, 12127122989,57005914349,268933430849, 1272801132329,6041172226049,28747703565329, 137119782755669,655421041672109,3138947897124609] |