n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 10 |
6 | 27 |
7 | 88 |
8 | 328 |
9 | 1460 |
10 | 7799 |
11 | 51196 |
12 | 422521 |
13 | 4483460 |
14 | 62330116 |
15 | 1150504224 |
16 | 28434624153 |
17 | 945480850638 |
18 | 42417674401330 |
19 | 2572198227615998 |
20 | 211135833162079184 |
21 | 23487811567341121158 |
22 | 3545543330739039981738 |
23 | 727053904070651775719646 |
[1,2,1,2,4,10,27,88,328,1460,7799,51196,422521, 4483460,62330116,1150504224,28434624153, 945480850638,42417674401330,2572198227615998, 211135833162079184,23487811567341121158, 3545543330739039981738,727053904070651775719646] |