n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 9 |
3 | 39 |
4 | 186 |
5 | 882 |
6 | 4307 |
7 | 21010 |
8 | 103692 |
9 | 511773 |
10 | 2539439 |
11 | 12603464 |
12 | 62722473 |
13 | 312217229 |
14 | 1556418854 |
15 | 7760380972 |
16 | 38725714681 |
17 | 193279301481 |
18 | 965122674081 |
19 | 4819846440327 |
20 | 24077535920525 |
21 | 120290453853929 |
22 | 601077094933615 |
23 | 3003718138328801 |
24 | 15012022337535169 |
25 | 75031110935319189 |
26 | 375039355141811408 |
[1,2,9,39,186,882,4307,21010,103692,511773, 2539439,12603464,62722473,312217229,1556418854, 7760380972,38725714681,193279301481,965122674081, 4819846440327,24077535920525,120290453853929, 601077094933615,3003718138328801, 15012022337535169,75031110935319189, 375039355141811408] |