n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 14 |
4 | 41 |
5 | 136 |
6 | 523 |
7 | 2330 |
8 | 11857 |
9 | 67912 |
10 | 432291 |
11 | 3027166 |
12 | 23125673 |
13 | 191389108 |
14 | 1705788659 |
15 | 16289080922 |
16 | 165919213089 |
17 | 1795666675824 |
18 | 20576824369027 |
19 | 248892651678198 |
20 | 3168999664907705 |
21 | 42366404751871660 |
[1,2,5,14,41,136,523,2330,11857,67912,432291, 3027166,23125673,191389108,1705788659,16289080922, 165919213089,1795666675824,20576824369027, 248892651678198,3168999664907705, 42366404751871660] |