n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 6 |
4 | 13 |
5 | 20 |
6 | 62 |
7 | 113 |
8 | 224 |
9 | 367 |
10 | 494 |
11 | 833 |
12 | 9169 |
13 | 131313 |
14 | 155719 |
15 | 180118 |
16 | 280766754 |
17 | 3454917187 |
18 | 31685027464 |
19 | 152431947617 |
20 | 629621648241 |
[1,3,6,13,20,62,113,224,367,494,833,9169,131313, 155719,180118,280766754,3454917187,31685027464, 152431947617,629621648241] |