n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 7 |
4 | 29 |
5 | 98 |
6 | 316 |
7 | 1043 |
8 | 3536 |
9 | 12083 |
10 | 41168 |
11 | 139750 |
12 | 473824 |
13 | 1607014 |
14 | 5453022 |
15 | 18506947 |
16 | 62808496 |
17 | 213144034 |
18 | 723295969 |
19 | 2454483506 |
20 | 8329290739 |
21 | 28265565587 |
22 | 95919580313 |
23 | 325504019213 |
24 | 1104600373788 |
25 | 3748469764612 |
26 | 12720462563684 |
27 | 43166996581876 |
[1,0,1,7,29,98,316,1043,3536,12083,41168,139750, 473824,1607014,5453022,18506947,62808496, 213144034,723295969,2454483506,8329290739, 28265565587,95919580313,325504019213, 1104600373788,3748469764612,12720462563684, 43166996581876] |