n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 14 |
4 | 45 |
5 | 284 |
6 | 1570 |
7 | 9267 |
8 | 70189 |
9 | 496232 |
10 | 4010526 |
11 | 34481105 |
12 | 308516868 |
13 | 2926837289 |
14 | 29200525341 |
15 | 307118111601 |
16 | 3309789462677 |
17 | 37814191683984 |
18 | 445615694701030 |
19 | 5424871661765829 |
20 | 68774736287172136 |
21 | 898086216694079703 |
22 | 12111344019974440847 |
[1,1,3,14,45,284,1570,9267,70189,496232,4010526, 34481105,308516868,2926837289,29200525341, 307118111601,3309789462677,37814191683984, 445615694701030,5424871661765829, 68774736287172136,898086216694079703, 12111344019974440847] |