n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 11 |
5 | 26 |
6 | 61 |
7 | 143 |
8 | 336 |
9 | 789 |
10 | 1853 |
11 | 4352 |
12 | 10221 |
13 | 24005 |
14 | 56378 |
15 | 132409 |
16 | 310975 |
17 | 730354 |
18 | 1715305 |
19 | 4028555 |
20 | 9461440 |
21 | 22221081 |
22 | 52188297 |
23 | 122569120 |
24 | 287865097 |
25 | 676078233 |
26 | 1587833266 |
27 | 3729175645 |
28 | 8758319459 |
29 | 20569736330 |
[1,1,2,5,11,26,61,143,336,789,1853,4352,10221, 24005,56378,132409,310975,730354,1715305,4028555, 9461440,22221081,52188297,122569120,287865097, 676078233,1587833266,3729175645,8758319459, 20569736330] |