n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 34 |
4 | 221 |
5 | 1736 |
6 | 15584 |
7 | 153228 |
8 | 1611189 |
9 | 17826202 |
10 | 205282376 |
11 | 2441437708 |
12 | 29816628471 |
13 | 372314544202 |
14 | 4737438631001 |
15 | 61264426341926 |
16 | 803488037899349 |
17 | 10668478221202710 |
18 | 143203795004873285 |
19 | 1940953294927992976 |
20 | 26536578116407809962 |
21 | 365653739580163294032 |
[1,2,7,34,221,1736,15584,153228,1611189,17826202, 205282376,2441437708,29816628471,372314544202, 4737438631001,61264426341926,803488037899349, 10668478221202710,143203795004873285, 1940953294927992976,26536578116407809962, 365653739580163294032] |