n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 8 |
4 | 26 |
5 | 83 |
6 | 289 |
7 | 999 |
8 | 3600 |
9 | 12955 |
10 | 47849 |
11 | 176552 |
12 | 661939 |
13 | 2482659 |
14 | 9412263 |
15 | 35707725 |
16 | 136454697 |
17 | 521967439 |
18 | 2007069109 |
19 | 7725358220 |
20 | 29848113425 |
21 | 115440484663 |
22 | 447751809956 |
23 | 1738330224040 |
24 | 6763528650892 |
25 | 26339260716779 |
26 | 102749051187162 |
27 | 401150111109149 |
28 | 1568301977278095 |
[1,1,3,8,26,83,289,999,3600,12955,47849,176552, 661939,2482659,9412263,35707725,136454697, 521967439,2007069109,7725358220,29848113425, 115440484663,447751809956,1738330224040, 6763528650892,26339260716779,102749051187162, 401150111109149,1568301977278095] |