n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 9 |
3 | 39 |
4 | 185 |
5 | 876 |
6 | 4272 |
7 | 20822 |
8 | 102663 |
9 | 506407 |
10 | 2511487 |
11 | 12460241 |
12 | 61987781 |
13 | 308486218 |
14 | 1537481126 |
15 | 7664734089 |
16 | 38242778515 |
17 | 190848327321 |
18 | 952890984361 |
19 | 4758408361998 |
20 | 23769042156759 |
21 | 118743134456250 |
22 | 593318364722098 |
23 | 2964839633443516 |
24 | 14817246566131697 |
25 | 74055736485350895 |
26 | 370155808721123557 |
[1,2,9,39,185,876,4272,20822,102663,506407, 2511487,12460241,61987781,308486218,1537481126, 7664734089,38242778515,190848327321,952890984361, 4758408361998,23769042156759,118743134456250, 593318364722098,2964839633443516, 14817246566131697,74055736485350895, 370155808721123557] |