n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 8 |
4 | 35 |
5 | 169 |
6 | 862 |
7 | 4575 |
8 | 24999 |
9 | 139700 |
10 | 794684 |
11 | 4586377 |
12 | 26788423 |
13 | 158054285 |
14 | 940603900 |
15 | 5639481930 |
16 | 34032324940 |
17 | 206550445064 |
18 | 1259975808104 |
19 | 7720835953740 |
20 | 47504293931640 |
21 | 293357473042545 |
22 | 1817649401577760 |
23 | 11296505623845080 |
24 | 70402438290940450 |
25 | 439888817329463279 |
26 | 2755010697928837222 |
27 | 17292270772076728414 |
[1,1,2,8,35,169,862,4575,24999,139700,794684, 4586377,26788423,158054285,940603900,5639481930, 34032324940,206550445064,1259975808104, 7720835953740,47504293931640,293357473042545, 1817649401577760,11296505623845080, 70402438290940450,439888817329463279, 2755010697928837222,17292270772076728414] |