n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 9 |
4 | 28 |
5 | 95 |
6 | 353 |
7 | 1435 |
8 | 6340 |
9 | 30205 |
10 | 154059 |
11 | 836181 |
12 | 4805816 |
13 | 29125915 |
14 | 185474289 |
15 | 1237159447 |
16 | 8620179448 |
17 | 62589847993 |
18 | 472554134275 |
19 | 3702702752513 |
20 | 30057098645316 |
21 | 252375781238167 |
22 | 2188733915100465 |
23 | 19579797280231795 |
24 | 180453411239741852 |
25 | 1711498126672376373 |
[0,1,3,9,28,95,353,1435,6340,30205,154059,836181, 4805816,29125915,185474289,1237159447,8620179448, 62589847993,472554134275,3702702752513, 30057098645316,252375781238167,2188733915100465, 19579797280231795,180453411239741852, 1711498126672376373] |