n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 14 |
3 | 78 |
4 | 478 |
5 | 3109 |
6 | 21063 |
7 | 146997 |
8 | 1049302 |
9 | 7624330 |
10 | 56198481 |
11 | 419155136 |
12 | 3157356819 |
13 | 23984387314 |
14 | 183519131353 |
15 | 1413099475142 |
16 | 10941294442694 |
17 | 85132006090350 |
18 | 665294548097852 |
19 | 5219591907202092 |
20 | 41095469624286421 |
21 | 324595783790966343 |
[1,3,14,78,478,3109,21063,146997,1049302,7624330, 56198481,419155136,3157356819,23984387314, 183519131353,1413099475142,10941294442694, 85132006090350,665294548097852,5219591907202092, 41095469624286421,324595783790966343] |