n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 2 |
3 | 3 |
4 | 11 |
5 | 31 |
6 | 101 |
7 | 328 |
8 | 1102 |
9 | 3760 |
10 | 13036 |
11 | 45750 |
12 | 162262 |
13 | 580638 |
14 | 2093802 |
15 | 7601043 |
16 | 27756627 |
17 | 101888163 |
18 | 375750537 |
19 | 1391512653 |
20 | 5172607767 |
21 | 19293659253 |
22 | 72188904387 |
23 | 270870709263 |
24 | 1019033438061 |
25 | 3842912963391 |
26 | 14524440108761 |
[1,0,2,3,11,31,101,328,1102,3760,13036,45750, 162262,580638,2093802,7601043,27756627,101888163, 375750537,1391512653,5172607767,19293659253, 72188904387,270870709263,1019033438061, 3842912963391,14524440108761] |