n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 22 |
5 | 76 |
6 | 290 |
7 | 1225 |
8 | 5616 |
9 | 27758 |
10 | 147050 |
11 | 829926 |
12 | 4966258 |
13 | 31382572 |
14 | 208676004 |
15 | 1455540594 |
16 | 10620614461 |
17 | 80869622604 |
18 | 641177678068 |
19 | 5282866462839 |
20 | 45152445030267 |
21 | 399673570426188 |
22 | 3658433105500600 |
23 | 34582526451125235 |
24 | 337165886689229224 |
[1,1,3,7,22,76,290,1225,5616,27758,147050,829926, 4966258,31382572,208676004,1455540594,10620614461, 80869622604,641177678068,5282866462839, 45152445030267,399673570426188,3658433105500600, 34582526451125235,337165886689229224] |