n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 6 |
4 | 11 |
5 | 22 |
6 | 41 |
7 | 77 |
8 | 144 |
9 | 267 |
10 | 495 |
11 | 915 |
12 | 1689 |
13 | 3115 |
14 | 5740 |
15 | 10572 |
16 | 19464 |
17 | 35825 |
18 | 65926 |
19 | 121301 |
20 | 223166 |
21 | 410544 |
22 | 755211 |
23 | 1389186 |
24 | 2555292 |
25 | 4700154 |
26 | 8645248 |
27 | 15901510 |
28 | 29247993 |
29 | 53796183 |
30 | 98947583 |
31 | 181994272 |
32 | 334741367 |
33 | 615687632 |
[1,1,3,6,11,22,41,77,144,267,495,915,1689,3115, 5740,10572,19464,35825,65926,121301,223166,410544, 755211,1389186,2555292,4700154,8645248,15901510, 29247993,53796183,98947583,181994272,334741367, 615687632] |