n | a(n) |
---|---|
1 | 1 |
2 | 21 |
3 | 77 |
4 | 1617 |
5 | 5929 |
6 | 124509 |
7 | 456533 |
8 | 9587193 |
9 | 35153041 |
10 | 738213861 |
11 | 2706784157 |
12 | 56842467297 |
13 | 208422380089 |
14 | 4376869981869 |
15 | 16048523266853 |
16 | 337018988603913 |
17 | 1235736291547681 |
18 | 25950462122501301 |
19 | 95151694449171437 |
20 | 1998185583432600177 |
21 | 7326680472586200649 |
[1,21,77,1617,5929,124509,456533,9587193,35153041, 738213861,2706784157,56842467297,208422380089, 4376869981869,16048523266853,337018988603913, 1235736291547681,25950462122501301, 95151694449171437,1998185583432600177, 7326680472586200649] |