n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 7 |
5 | 16 |
6 | 45 |
7 | 125 |
8 | 363 |
9 | 1127 |
10 | 3561 |
11 | 11696 |
12 | 39727 |
13 | 138113 |
14 | 494213 |
15 | 1811075 |
16 | 6784115 |
17 | 25985928 |
18 | 101520833 |
19 | 404305549 |
20 | 1640002039 |
21 | 6767576175 |
22 | 28395916893 |
23 | 121048681024 |
24 | 523902418555 |
25 | 2300906314849 |
26 | 10248029334297 |
27 | 46266088140291 |
[1,1,1,3,7,16,45,125,363,1127,3561,11696,39727, 138113,494213,1811075,6784115,25985928,101520833, 404305549,1640002039,6767576175,28395916893, 121048681024,523902418555,2300906314849, 10248029334297,46266088140291] |