n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 15 |
5 | 51 |
6 | 188 |
7 | 731 |
8 | 2950 |
9 | 12235 |
10 | 51822 |
11 | 223191 |
12 | 974427 |
13 | 4302645 |
14 | 19181100 |
15 | 86211885 |
16 | 390248055 |
17 | 1777495635 |
18 | 8140539950 |
19 | 37463689775 |
20 | 173164232965 |
21 | 803539474345 |
22 | 3741930523740 |
23 | 17481709707825 |
24 | 81912506777200 |
25 | 384847173838501 |
26 | 1812610804416698 |
27 | 8556895079642921 |
28 | 40480850291739165 |
29 | 191884148712996795 |
30 | 911225151259732188 |
31 | 4334673398737025619 |
32 | 20653004146207902678 |
33 | 98551406393189773875 |
[1,1,2,5,15,51,188,731,2950,12235,51822,223191, 974427,4302645,19181100,86211885,390248055, 1777495635,8140539950,37463689775,173164232965, 803539474345,3741930523740,17481709707825, 81912506777200,384847173838501,1812610804416698, 8556895079642921,40480850291739165, 191884148712996795,911225151259732188, 4334673398737025619,20653004146207902678, 98551406393189773875] |