n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 5 |
4 | 15 |
5 | 92 |
6 | 436 |
7 | 1993 |
8 | 9478 |
9 | 43638 |
10 | 187235 |
11 | 809030 |
12 | 3365945 |
13 | 13510461 |
14 | 53274149 |
15 | 204598179 |
16 | 765394402 |
17 | 2806261890 |
18 | 10071367726 |
19 | 35409883104 |
20 | 122234932333 |
21 | 414412164610 |
22 | 1380949308381 |
23 | 4527966672187 |
24 | 14616894999438 |
25 | 46485172533638 |
[1,1,5,15,92,436,1993,9478,43638,187235,809030, 3365945,13510461,53274149,204598179,765394402, 2806261890,10071367726,35409883104,122234932333, 414412164610,1380949308381,4527966672187, 14616894999438,46485172533638] |