n | a(n) |
---|---|
1 | 1 |
2 | 10 |
3 | 54 |
4 | 242 |
5 | 979 |
6 | 3728 |
7 | 13627 |
8 | 48382 |
9 | 168069 |
10 | 574040 |
11 | 1934346 |
12 | 6446824 |
13 | 21290563 |
14 | 69771854 |
15 | 227150074 |
16 | 735316478 |
17 | 2368536349 |
18 | 7596077384 |
19 | 24267094264 |
20 | 77258501372 |
21 | 245204480443 |
22 | 776060212130 |
23 | 2449968185161 |
[1,10,54,242,979,3728,13627,48382,168069,574040, 1934346,6446824,21290563,69771854,227150074, 735316478,2368536349,7596077384,24267094264, 77258501372,245204480443,776060212130, 2449968185161] |