n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 10 |
5 | 29 |
6 | 88 |
7 | 281 |
8 | 928 |
9 | 3170 |
10 | 11108 |
11 | 39844 |
12 | 145700 |
13 | 542099 |
14 | 2047390 |
15 | 7837154 |
16 | 30359390 |
17 | 118877686 |
18 | 470023034 |
19 | 1874858180 |
20 | 7538907394 |
21 | 30538466279 |
22 | 124544812652 |
23 | 511112081854 |
24 | 2109676656860 |
25 | 8754763717529 |
26 | 36512355688438 |
27 | 152987775947396 |
[0,1,2,4,10,29,88,281,928,3170,11108,39844,145700, 542099,2047390,7837154,30359390,118877686, 470023034,1874858180,7538907394,30538466279, 124544812652,511112081854,2109676656860, 8754763717529,36512355688438,152987775947396] |