n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 14 |
4 | 42 |
5 | 146 |
6 | 513 |
7 | 1814 |
8 | 6457 |
9 | 23852 |
10 | 88822 |
11 | 331756 |
12 | 1241569 |
13 | 4704536 |
14 | 17919729 |
15 | 68426280 |
16 | 261659138 |
17 | 1005583928 |
18 | 3876858984 |
19 | 14975423376 |
20 | 57918225459 |
21 | 224542599510 |
22 | 872234912198 |
23 | 3393031324338 |
24 | 13212674724177 |
[1,2,5,14,42,146,513,1814,6457,23852,88822,331756, 1241569,4704536,17919729,68426280,261659138, 1005583928,3876858984,14975423376,57918225459, 224542599510,872234912198,3393031324338, 13212674724177] |